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Acerola (Malpighia emarginata DC.) is a shrub species that grows in tropical and subtropical climates; it is native to southern Mexico, Central America and northern South America. Its fruits have a high vitamin C content and are considered one of the most potent and least toxic natural antioxidants. Among the main pest species causing crop damage is the genus Anthonomus (Coleoptera: Curculionidae). In 2019, surveys were conducted in the western region of Cuba to evaluate the presence of pests in plants located in the localities of Alquizar and Ceiba del Agua, belonging to the province of Artemisa. They collected 100 flowers and 100 green fruits of different sizes that presented deformations and symptoms characteristic of damage caused by an insect. A total of 344 holes were counted, for an average of 3.4 holes per fruit; in addition, 230 larvae, 114 eggs, 65 pupae and 81 adults of a coleopteran. The objective of the work was to identify the species of the insect associated with the observed damage. The morphological characters of the collected insect allowed the identification of Anthonomus sisyphus Clark as the cause of damage to acerola fruits and constitutes the first report of this species as a pest of this fruit tree in Cuba. [ABSTRACT FROM AUTHOR]

The presence of Drosophila suzukii (Matsumura) associated to blackberry crop var. Prime-Ark (Rubus L. subgenus Rubus Watson) is recorded for the first time in Mendoza, Argentina. The western distribution boundary in Argentina is broadened. [ABSTRACT FROM AUTHOR]

The etiology of the mealybug wit of pineapple (MWP) disease is associated with a complex of ampeloviruses (Closteroviridae) named Pineapple mealybug wilt-associated virus -1 to -5 (PMWaV-1 to -5). The aims of this study were to determine the specie of PMWaVs associated with MWP symptoms in pineapples plants hybrid 'MD-2', and virus presence in asymptomatic crowns of the same cultivar. Six symptomatic plants and 25 asymptomatic crowns were collected in pineapples cv. 'MD-2' commercial fields in Ciego de Ávila, during the period 2010-2015. The crowns were used as explants to produce "in vitro" plants. Total RNAs were extracted to detect PMWaV-1, -2 and -3 by RT-PCR. Five of the six MWP symptomatic plants contained PMWaV-2 infection, four of them with mixed infection with PMWaV-1 and/or PMWaV-3. The forty percent of the 25 in vitro plants were infected, at least, by one PMWaV, 16 % of the three viral species, 8 % by two, and 16 % by only one virus. The incidence of PMWaVs was 38.5 % either for PMWaV-1 and PMWaV-3 (12/31), and 32.3 % for PMWaV-2 (10/31). These results indicate the need of the sanitary certification of pineapple propagation material. [ABSTRACT FROM AUTHOR]

The objective of this study is to identify the arthropod species that causes seed loss during the pre-dispersal stage of Ramorinoa girolae Speg (chica), in Ischigualasto Provincial Park (San Juan province, Argentina). In January 2013, we randomly collected 10 fruits from the crown of 17 adult R. girolae trees found at three sites separated by approximately 4 km. Each fruit was kept in separate closed jars for 6 months, until the adult arthropods emerged. Different arthropod species were found to be associated with R. girolae fruit. Seed loss was caused by Anypsipyla univitella (Lepidoptera, Pyralidae), whose larva lives inside the fruit and can consume up to 4 seeds during its development. This larva causes up to 60% of seed loss during the pre-dispersal stage. A parasitoid of the genus Goniozus sp. (Himenoptera, Chrysidoidea, Bethylidae) was found in association with the arthropod in more than 65% of the cases. [ABSTRACT FROM AUTHOR]

The aim of this study was to determine, the animal species causing damage to inmature fruits of Averrhoa carambola, in a home garden. The study was conducted in a home garden with two star fruit trees in Cardenas, Tabasco, Mexico (18°00'10.9" N, 93°25'52.2" W). The loss of fruits was registered from June 21st to August 2nd, 2015 based on weekly evaluations. 12 637 fruits were toppled by the bird Amazona albifrons Sparman (Psitaciformes: Psittacidae), which is distributed from Mexico to Costa Rica. [ABSTRACT FROM AUTHOR]

El artículo discurre sobre dos nuevas plagas para Mangifera indica descubiertas en Cuba, Fiorinia fioriniae y Protopulvinaria pyriformis, de la familia de insectos Coccidae. Los autores comentan sobre los antecedentes de plagas comunes para el mango y describen los esfuerzos para realizar un inventario de estos insectos.

Mango is the main fruit produced in Nayarit, Mexico; it is damaged by the white mango scale (WMS) Aulacaspis tubercularis Newstead, which may produce losses of 50% if the pest is not controlled. Due to this problem, knowledge about its distribution in the State of Nayarit is required for management purposes. The aim of this study was to know the distribution of the scale in Nayarit, according to altitude, the two main cultivars and age of mango orchards. During three years (2007-2009) a program of sampling in all growing areas of Nayarit was conducted, during the periods of fructification and high densities of the pest (April-June of each year). During 2007, 217 mango orchards in 38 towns were sampled; 220 in 45 towns in 2008, and 83 mango orchards, in 23 towns in 2009 were sampled. It was found that mango orchards at the south of the state showed the higher densities of the scale on foliage, and the highest fruit infestation. Mango orchards from Compostela and Bahía de Banderas recorded the highest mango infestation; San Blas and Tepic resulted with moderate high infestations; Santiago Ixcuintla and Tecuala recorded low infestations. The pest was not detected in Acaponeta, Rosamorada and Ruiz. The highest WMS infestations were recorded in mango orchards at 0-500 of altitude, and also on 'Ataulfo' mango or in orchards less than 10 year old. [ABSTRACT FROM AUTHOR]

Several distorted Mexican lime [Citrus aurantiifolia (Christm). Swingle] fruit, leaf, and twig samples with lime anthracnose symptoms were collected from three trees in residential areas of Brownsville, Texas. The causal fungal organism, Colletotrichum acutatum J. H. Simmonds was isolated from leaves and fruit. Amplification of nuclear ribosomal DNA repeat region using ITS1 and ITS4 primers and intron 2 of the glyceraldehyde 3-phosphate dehydrogenase gene using GDF and GDR from fungal DNA resulted in approximately 520 bp and 260 bp amplicons, respectively. Similarity search for the nucleotide sequences obtained from 520 bp and 260 bp fragments at Basic Local Alignment Search Tool (BLASTn) program showed 99% identity to C. acutatum and 100% identity to several Colletotrichum species, respectively. The fungal isolates were further confirmed as C. acutatum by selective amplification of about 490 bp PCR fragment using species specific primer CaInt2 in combination with primer ITS4. Phylogenetic tree constructed using ITS nucleotide sequence data separated the isolate from the postbloom fruit drop (PFD) isolates and placed it in the group of key lime anthracnose (KLA) isolates. Pathogenicity assays by inoculation of detached leaves, flowers, and fruit showed that thornless Mexican lime and common Mexican lime showed typical symptoms of KLA while inoculated detached leaves of Rio Red grapefruit, Valencia sweet orange, Bearss lime, pink Eureka lemon, Eustis limequat, Ponderosa lemon, kaffir lime, seedless Lisbon lemon, and Meyer lemon did not develop any lesions. [ABSTRACT FROM AUTHOR]

Irapuato county, in Guanajuato state in central Mexico, was the main strawberry producer at national level, where viral infections was one of the causes for the decrease in the amount of acres cultivated with this crop. Strawberry mottle virus (SMoV), Strawberry crinkle virus (SCV), and Strawberry latent ringspot virus (SLRSV) were previously found affecting strawberry production in Irapuato; however, the viral diversity present in strawberry fields of Mexico is unknown. This survey was carried in a small area of Irapuato and Abasolo counties, in Guanajuato state, where the highest viral diversity associated to strawberry has been reported. We detected seven different viral species in 57 samples collected: SCV, SMoV, Fragaria chiloensis cryptic virus (FClCV), Fragaria chiloensis latent virus (FClLV), Strawberry pallidosis associated virus (SPaV), Strawberry necrotic shock virus (SNSV), and Strawberry mild yellow edge virus (SMYEV). All in single and in 24 different mixed infections, conforming the Irapuato's Local Strawberry Virus Complex (LSVC). The most abundant viruses were SMoV, FClCV, SNSV, and SMYEV. We compared nucleotide sequences of strawberry Mexican viral isolates with those that affect strawberry in the USA, finding deletions, silent and non-silent mutations in the Mexican isolates. [ABSTRACT FROM AUTHOR]

Copyright of Mundo Agrario is the property of Universidad Nacional de La Plata and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The local interest of producers, traders and consumers for the Castilla Blackberry produced in Ibagué city and lack information about its qualities is the reason of the current fruit's characterization evaluated in six maturity states. The morphological and physicochemical results indicate that the harvest optimum state was fifth, because its good index-harvest, firmness, weight, total soluble solids (TSS), yield and insoluble matter in alcohol (IMA), in this phase of maturation the high acidity limits bacterial growth, although fungal problems persistented like Botrytis Cinerea. However, the harvest in fourth and sixth state is not recommended, due to lower weight and volume; and structural fragility often produces lixiviation, fermentation and injury of the fruit respectively. In general the statistical analysis revealed significant differences between maturity degrees about weight, diameter greater, volume, acidity, TSS, minerals, and IMA, ratifying the importance of relation between development degree of the fruit and harvest time because its direct impact on product quality and commercial competitiveness. [ABSTRACT FROM AUTHOR]

The obscure mealybug Pseudococcus viburni (Signoret) is a quarantine pest present in the Upper Valley of Río Negro and Neuquén, Argentina. The detection of any growth stage of the mealybug in quarantine inspections often results in rejections of fresh fruit in countries where the fruit is exported. In this study the detection threshold of P. viburni was determined by PCR technique. The DNA extraction kit, DNAzol™, was used as a fast DNA extraction method. By using the above extraction kit, good DNA quality and concentration was obtained from specimens of P. viburni of different developmental stages (including eggs, nymphs and adults) which were preserved in pro-analysis ethanol at -20°C following the manufacturer protocol. One aliquote of this DNA was used as a template in a PCR reaction using specific P. viburni primers recorded in the literature and DNA of P. viburni irom an entomological collection was used as a control. In all stages the amplification generated an expected size band of 650 bp visualized in an agarose 1.5% gel. The detection threshold of P. viburni using our method was an egg. These results involve a specific detection technique for P. viburni ana reliable species identification in a space of 48 h. [ABSTRACT FROM AUTHOR]

Due to the 35% decrease in performance and increased mortality of avocado, a study was conducted in the municipalities of Curuman' and La Paz Robles in the Department of Cesar, in order to identify the major agro-ecological and management factors that affect health and productivity, as well as those areas of greatest comparative advantages for planting. Root tissues, the production system variables, physical , chemical and microbiological descriptors of soil, were evaluated using principal components analysis. Infection in roots by Phytophthora and Fusarium sp were confirmed, with variable incidence between municipalities. Fisher's test (5%) showed no significant relationship (P> 0.05) between pathogens and symptoms in trees. In Curuman', variables with higher contribution to 32.70% of the variance explained by the first principal component were UFC of bacteria, temperature, pH and sand; while in La Paz Robles (44.30%) the variables were percentage of silt, organic matter and number of fungal genera. The conglomerate analysis indicated greater heterogeneity in the production system of farms in Curuman' with respect to La Paz Robles. In both municipalities, the percentage of organic matter showed positive relationship with the number of genera of fungi identified while the percentage of clay affected the fruit yield and more pathogenic than beneficial factors were found. The incidence of root rot was influenced by acid soils, low nutrient levels, organic matter and inappropriate agricultural practices. The promising trails for investment were Paraiso porvenir, Los naranjos, and Las nubes. [ABSTRACT FROM AUTHOR]

In commercial plantations of plantain low density polyethylene (LDPE) bags impregnated with chlorpyrifos (insecticide) at 1%, are used as the main protection practice of fruits against pests that affect their appearance. There are not studies which provide data on economic effects caused by the plantain bagging technique in the Quindío region, reason why we conducted this descriptive analytical work, which quantifies the economic impact and energy balance generated with this practice. Bagging is an important item in the cost of maintenance of plantain crop: inputs (15%) and labor (14%), representing 13% of the total cost of maintenance/hectare of technified plantain. The benefit/ cost indicator of bagging plantain bunches does not represent a higher profit to the producer compared to not using the bagging system. Producers in the department of Quindío who carry out their putting on the market through intermediaries, do not have clear the function of the polyethylene bag treated or not treated with chlorpyrifos. This bagging practice requires 31,458 kcal in additional energy consumption in cultivation, which means that it takes more energy units to provide a dietary energy unit, equivalent to non bagged fruit. Bagging is not an essential activity in the agronomic management of the crop; it is a "fashionable" activity widespread in the above mentioned plantain area with a notorious environmental impact. [ABSTRACT FROM AUTHOR]

Tamarillo is one of the fruit crops with the highest potential for being intensively produced in the Colombian Andes, because it has a great quantity of organoleptic and nutritional characteristics interesting for food industries and for the national and international fresh fruit markets. These conditions, added to its use as a substitute for illegal crops in Colombia, led to the increase of the area planted with this product in the 1990's decade, reaching almost 7.500 hectares. However, this situation recently had a dramatic change due to phytosanitary problems, among which anthracnose (Colletotrichum acutatum) and virosis can be remarked. The latter, according to recent research works, is caused by a complex conformed by, at least, four main viruses (Potyvirus, PLRV, CMV and ToMV) and others, apparently less influential (AMV, ToRSV andf TSWV). Due to the great impact this disease has had on the expansion plans of the tamarillo cultivation in Colombia, this revision introduces a detailed description of the main viral groups associated to virosis, emphasizing the characteristics of their genomes, which is the information base to design tools to detect the viruses. [ABSTRACT FROM AUTHOR]

Malpighia mexicana, or red nanche, is a plant with edible fruits, used on crafts and medicine, as well as for the establishment of living fences. The objective of this work was to catalog the parasitoids associated with Anthonomus sisyphus Clark (Coleoptera: Curculionidae) in the fruit of M. mexicana in the central valleys of Oaxaca, México. The sampling sites were located in San Lorenzo Cacaotepec and the Ethnobotanical Garden of Santo Domingo. From 2005 to 2007, mature red nanche fruits were collected weekly to determine the emergency of the parasitoids. The fruits were weighed, counted and placed in trays. The greatest infestation was found in San Lorenzo Cacaotepec with 1.16 to 1.44 weevils per fruit while in the Ethnobotanical Garden were 0.74 to 1.18 weevils per fruit. Seven different species of parasitoids belonging to the families Braconidae, Pteromalidae, and Eupelmidae were found associated with A. sisyphus. The most abundant species were Triaspis eugenii, Diospilus sp., and Bracon sp. The Ethnobotanical Garden was the site with the greatest abundance of species of parasitoids and presented the highest level of parasitism. The species with the highest proportion of males were Bracon sp. in 2005 and 2007 and T. eugenii in 2006. [ABSTRACT FROM AUTHOR]

Copyright of BIOAGRO is the property of Revista BIOAGRO and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Acidovorax avenae subsp. citrulli, causing bacterial fruit blotch of watermelon, is considered a pathogen with high potential for destruction capable of causing losses of 100% in nursery or plantation, when it is developed under favorable environmental conditions for their multiplication and dissemination. Therefore, the objective of this research was to analyze the risk of introduction and establishment of A. avenae subsp. citrulli (quarantine pest for Mexico) associated to import seed of watermelon. The assessment was based on the process of risk analysis version 5.02 APHIS-PPQ, modified to evaluate this pathogen, including a geoespacial analysis to determine the potential of establishment of the bacterium in growing areas of watermelon in Mexico using the NAPPFAST system. The results show that the range of total risk of A. avenae subsp. citrulli is high in Mexico, obtaining a value of 12 points accumulated on the risk elements categorized. The growing areas of watermelon located in the states of Yucatan, Quintana Roo, Campeche, Tabasco, and Southern Veracruz, are at high risk of establishment, because the climatic conditions favor infection by the bacterium during May and June, when the crop is susceptible. Whereas the watermelon-producing areas in the states of Sinaloa, Durango, Zacatecas, Mexico, Hidalgo, Queretaro, Michoacan, Guanajuato, Tlaxcala, and Puebla, have low risk of establishment. The adoption of phytosanitary measures such as the treatment of the seed with peroxyacetic acid, to minimize this risk is widely recommended. [ABSTRACT FROM AUTHOR]

Copyright of Revista Chapingo Serie Horticultura is the property of Universidad Autonoma Chapingo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ingeniería Agrícola y Biosistemas is the property of Universidad Autonoma Chapingo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Serious damages in fruit quality and important tree distortion can be produced by thrips. However, studies with the aim of determining the presence of thrips on fruit trees in Cuba are limited. With this purpose, 14 botanical species pertaining to eight families were sampled in nine municipalities of Havana province in 2003 and 2004. The specimens were collected by striking the plants over a white cardboard and prepared by conventional techniques of clearing for slide mounting. Identification was carried out using regional taxonomic keys. The presence of 22 species was informed with the highest incidence on tangelo trees, which accumulated 45.45% of the total, followed by guava and grapefruit trees. Asthrotris sp., Chaetisothrips striatus Hood and Ramphothrips padens Sakimura were new reports for Cuba, predominating Frankiniella genus. Papaya, tangelo, lime, grapefruit, sour orange and coffee plants were shown to be new "hosts" of thrips in the country. [ABSTRACT FROM AUTHOR]

Ceratitis capitata (Wiedemann) is a cosmopolitan Tephritids dipteran native to the north of Africa, which is the main plague of fruit trees in many countries of the American continent. Here we assess the dispersion capacity of the Ceratitis capitata, by releasing sterile flies under field conditions, in order to predict possible invasion to agricultural valleys nearby. 54,000 marked sterile flies of both sexes were released in locations of the Tulum Valley, close to the access to the Ullum and Zonda valleys. Jackson & Mc Phail traps were set up for monitoring the dispersion flights. 1,213 adults were captured during the sampling period, and there was no dispersion of the released adults from the Tulum valley to the Ullum and Zonda valleys. Host presence, geographical position of each ravine and wind orientation could explain the dispersion difference betwen both ravines. The dispersion lasted five weeks and the average dispersion distance reached by the released adults was of 3,764 m (S= 2897 m). No differences between sexes were detected. [ABSTRACT FROM AUTHOR]

Codling moth (Cydia pomonella L.) is the main pest of pip fruits worldwide. Despite its economic importance, little is known about the genetic structure and patterns of movement at local and regional scale, important aspects for establishing a control strategy for this pest. An analysis of genetic variability on six populations of C. pomonella using microsatellite was performed in the two major apple (Malus domestica Borkh.) growing regions of Central Chile. In spite of geographic distances between some populations (aprox. 180 km), there was little genetic differentiation among populations (FST = 0.0-0.00097 and GST = 0.005-0.127), without isolation by distance, and high levels of gene flow (Nm ≈ 250). High frequencies of null alleles were found over all loci across populations (Na = 0.292) which seem to explain the significant heterozygote deficiencies found. Approximatelly 98% of the variance was found within individuals and very little at the other hierarchical levels. The high levels of genetic diversity and gene flow detected seem to indicate that the codling moth populations studied in both regions have an almost continuous distribution. [ABSTRACT FROM AUTHOR]

One of the problems for fresh fruit production in citrus plantations is pest occurrence, e.g. Phyllocnistis citrella Stainton (Lepidoptera: Gracillaridae) detected in Cuba in 1993. It has been considered as one of the most harmful pests of this crop due to the damages caused by larvae in the leaves, sprouts and fruits. To known the dispersion tendency of P. citrella is of so much interest for taking samples and the sampling method. The study was carried out in the Isla de la Juventud nursery on Rugoso, Carrizo and Troyer patterns, from June 1996 to February 1997. Samplings took place weekly in 30 plants previously fixed at random until the they were grafted. A vegetative sprout was taken and the development state and total population of P. citrella were quantified in the pattern studied. Data were evaluated according to Taylor's power law. Results showed that P. citrella distribution pattern was aggregated for the three patterns studied. Variability was found for development state of the insect in the space distribution pattern since eggs and larvae showed aggregation and pupae showed uniform dispersion. This result constitutes a premise to use a good sampling method of P. citrella in the citrus cultivation of Isla de la Juventud. [ABSTRACT FROM AUTHOR]

Samplings carried out in 24 fruit trees in different regions of the country showed the presence of 17 mealybug species belonging to the genera Dysmicoccus Ferris; Ferrisia Fullaway;, Nipaecoccus Sulc; Paracoccus Ezzat and Mc Connell; Phenacoccus Cokerell, Plotococcus Millar & Denno; Planococcus Ferris and Pseudococcus Westwood. Dysmicoccus bispinosus and Nipaecoccus nipae were the species with the highest frequency; and Annona muricata (Soursop) and Psidium guajava (Guava) were the tree species with the highest number of mealybugs with 10 each. [ABSTRACT FROM AUTHOR]

The present work was developed at the National Institute of Agricultural Sciences (INCA), to study the sun blotch performance in 17 tomato varieties cultivated under winter and summer conditions. Different morphoagronomic characters related with plant architecture and fruits were evaluated. Also, the frequency, occurrence and severity of sun blotch symptoms were observed. Results showed a high rate of sun blotch in fruits, with symptoms from yellow shoulder (YS) to internal white tissue (IWT). There was not any correlation between the presence of sun blotch morphoagronomic variables. The occurrence and severity depended on climatic and genetic factors and their interaction. Results recommend the necessity to perform a detailed genetic study on the susceptible and tolerant germplasm, with the objective to understand fruit disorder causes and development. [ABSTRACT FROM AUTHOR]

The Alto Valle of Rio Negro and Neuquén is the main production zone of pomme fruits from Argentina. The main pest is Cydia pomonella L. (Lepidoptera: Tortricidae). Changes operated in control strategies in the last years have brought changes in the biodiversity of fruit orchards. During the season 2008/09, Hypercompe indecisa (Walker) (Lepidoptera: Noctuidae) was detected in a fruit establishment of Vista Alegre (Neuquén) under organic production causing serious damages on fruits and leaves of pear trees and in the leaves of Populus spp. Hypercompe indecisa is reported for the first time in Patagonia and is the first record of this species on Populus spp. and Pyrus commun is L. [ABSTRACT FROM AUTHOR]

Mangifera indica es uno de los frutales de mayor importancia económica en la proyección estratégica para la producción frutícola en el país y, en la actualidad, ya se han incrementado las áreas dedicadas a su cultivo. En Cuba, a pesar de las afectaciones en frutos, ramas y hojas que han provocado los insectos con diversos hábitos alimentarios y los ácaros, pueden considerarse insuficientes los trabajos relacionados con la sanidad del cultivo. Para actualizar el inventario de insectos, ácaros y enemigos naturales presentes en Mangifera indica, se realizaron muestreos a partir del año 2010 hasta 2014. Se evaluaron plantas en Pinar del Río, Artemisa, La Habana, Mayabeque, Matanzas, Cienfuegos, Ciego de Ávila y Santiago de Cuba. Se estimaron los parámetros: frecuencia, constancia y dominancia de las especies detectadas. Se calculó una riqueza de 42 especies hospedando el mango, que representan taxonómicamente 10 órdenes y 19 familias, así como diferentes niveles tróficos (99% fitófagos y 1% enemigos naturales). Se determinaron 8 especies dominantes, entre ellas los ácaros Oligonychus mangiferae (Prostigmata: Tetranychidae), Aceria mangiferae Sayed, Aceria kenyae Keifer y Spinacus pagonis Keifer (Prostigmata: Eryophidae) y los insectos, Chrysomphalus dictiospermi, Aspidiotus destructor, Ischnaspis longisrostris (Hemiptera: Diaspididae) y Coccus mangiferae (Hemiptera: Coccidae). Las especies constantes resultaron: Oligonychus mangiferae, Aceria kenyae y Phytoseilus sp. Las localidades de mayor riqueza de especies fueron: Mayabeque (UCTB Alquízar 17) y Matanzas (Jagüey Grande 17). En general, la incidencia de enemigos naturales resultó baja, con excepción de Phytoseilus sp. que estuvo presente en todas las áreas. [ABSTRACT FROM AUTHOR]

El artículo presenta los resultados científicos de una investigación que trata de plátanos en Cuba y los problemas de enfermedades en este cultivo. La investigación tiene que ver con la resistencia del plátano al fungi, Fusarium oxysporum. Se describe la manera en que las enfermedades causan daño y también las técnicas de resolver el problema.