21 research outputs found
Susceptibility of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidea) to gamma-cyhalothrin under laboratory conditions
Full text linkCrop-specific mortality of southern green stink bug eggs in Bt- and non-Bt cotton, soybean and peanut
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Adjacent trophic-level effects on spatial density dependence in a herbivore—predator—parasitoid system
No full textNatural parasitism ofChrysoperla carnea by hymenopterous parasitoids in cotton-growing areas of Çukurova, Turkey
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Tachinid parasitoids (Diptera: Tachinidae) ofSpodoptera exigua in cotton fields in Diyarbakır, Turkey
No full textEffects of diet, temperature and photoperiod on development and survival of the bigeyed bug, Geocoris lubra
No full textBigeyed bugs (Geocoris spp., Hemiptera: Geocoridae) are common predators in Australian agricultural crops yet the development and reproductive biology of Australian geocorids has not been described before. Here we present the effects of diet, temperature and photoperiod on the development and survival of Geocoris lubra Kirkaldy from egg to adult. Nymphal survival of G. lubra reared on live aphids (Aphis gossypii Glover) was very low but improved slightly on a diet of Helicoverpa armigera (Hubner) eggs. Development was faster and nymphal survival improved significantly at 27 degrees C compared with 25 degrees C. Further investigation at 27 degrees C showed photoperiod influenced development time, but not survival of immature G. lubra. Development time was significantly longer at 10L:14D. Fecundity of first generation G. lubra was not affected by photoperiod, although egg viability was greater at 12L:12D
