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The spread of Cameraria ohridella in Sweden and population dynamics were monitored with pheromone traps during 2007-2009. The most northerly location where the moth was trapped and mines were observed was Uppsala (59°52'N, 17°38'E). The host plant range of C. ohridella and infestation levels of Aesculus spp. were assessed in southern Sweden. Aesculus hippocastanum and its varieties, A. turbinata and A.×hemiacantha were the most susceptible. No damage was observed on A.×carnea, A. parviflora and A. chinensis. Studies of the parasitoid complex of C. ohridella revealed that the dominant parasite species was the braconid Colastes braconius, followed by the eulophids Minotetrastichus frontalis and Pnigalio agraules. [ABSTRACT FROM AUTHOR]

A survey of the parasitoid complex of lily leaf beetle (Lilioceris lilii) was conducted in Sweden from 2006 to 2007. Total parasitism varied between 21 and 57%. The most abundant parasitoids were the ichneumonids Lemophagus errabundus and L. pulcher and the eulophid Tetrastichus setifer. The potential for biological control is discussed. [ABSTRACT FROM AUTHOR]

The leaf beetle, Mesoplatys ochroptera Stål has recently become a serious pest of Sesbania sesban (L.), a nitrogen-fixing leguminous tree being eagerly adopted by farmers in short-rotation planted fallows for soil fertility improvement in eastern Zambia and elsewhere in Southern Africa. Surveys were conducted to identify parasites of M. ochroptera during the rainy season in 1998, 1999 and 2000 at several sites in the Eastern Province of Zambia. During the three years of rearing, no egg or pupal parasitoids were recovered from M. ochroptera. In contrast, two natural enemies, the braconid parasitoid Perilitus larvicida van Achterberg and the entomoparasitic nematode Hexamermis sp. were recorded for the first time from both larval and adult stages of the beetle. P. larvicida is one of the only parasitoids recorded as attacking and emerging from both the larval and adult stages of the same holometabolous insect host. Parasitism by the braconid and the nematode was low even during the peak population of the beetle in farmer's fields. Apparent parasitism due to P. larvicida was 4.5 and 5.5% in larvae and adults, respectively. Hexamermis sp. infections were recorded in 7.3% of the larvae and 0.3% of the adults. Both parasite species were also found in beetle populations on wild Sesbania spp. The potential for biological control of the beetle is discussed. [ABSTRACT FROM AUTHOR]