Monitoring of psyllids (Psylloidea: Phalacridae) in integrated systems with eucalyptus

Diversified systems allow the balance of the ecosystem, reducing the action of harmful insects to monoculture by retention time and immigration of the natural enemies. The objective of this research was to monitor the population of psilids, hemiptera, Psylloidea: Aphalaridae, deeucaliptos in integrated production systems. The evaluations were carried out in an experiment on productive systems integrating the components of eucalyptus crop, pasture and forest in a transition region between Cerrado and Amazonia in the State of Mato Grosso, Brazil. The study was conducted from June 2013 to September 2014, with assessments conducted during periods of drought and rain. The eggs, nymphs and adults of Spondyliaspidinae were quantified in each production system, using as methods of collection, adhesive traps and collection of the eucalyptus branches. The species Glycaspisbrimblecombei and Blastopsyllaoccidentalis were found. The largest infestations of eggs, nymphs and adults were in the dry period. The treatments did not differ for the variable eggs of B. occidentalis, but presented a significant difference for nymphs and adults. The effect of the treatments was not significant for eggs, nymphs and adults of G. brimblecombei. The time did not show a significant difference for the eggs of G. brimblecombei, but significant for their nymphs and adults. It concludes that the psyllids were not harmful to eucalyptus in the studied silvicultural phase and that the diverse landscape contributes to the reduction