Survival and Hsp70 Gene Expression in Plutella xylostella and Its Larval Parasitoid Diadegma insulare Varied between Slowly Ramping and Abrupt Extreme Temperature Regimes
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چکیده
منابع مشابه
Survival and Hsp70 Gene Expression in Plutella xylostella and Its Larval Parasitoid Diadegma insulare Varied between Slowly Ramping and Abrupt Extreme Temperature Regimes
BACKGROUND In nature, insects have evolved behavioural and physiological adaptations to cope with short term exposure to extreme temperatures. Extreme heat events may increase as a result of climate change; this in turn will affect insect population dynamics. We examined the effect of abrupt and ecologically relevant gradual exposure to high temperatures on the survival and hsp70 gene expressio...
متن کاملSpread and global population structure of the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae) and its larval parasitoids Diadegma semiclausum and Diadegma fenestrale (Hymenoptera: Ichneumonidae) based on mtDNA.
The diamondback moth (DBM) (Plutella xylostella) is one of the main pests of brassicaceous crops worldwide and shows resistance against a wide range of synthetic insecticides incurring millions of dollars in control costs every year. The DBM is a prime example of the introduction of an exotic species as a consequence of globalization. In this study we analyzed the genetic population structure o...
متن کاملEffects of nectar-producing plants on Diadegma insulare (Cresson), a biological control agent of diamondback moth, Plutella xylostella (L.)
Effects of nectar-producing plants (NPP) on the longevity, fecundity, oviposition and nectar-collecting behaviour of Diadegma insulare were studied. Longevity and fecundity of D. insulare were varied with morphological characters of NPP’s flowers. Brassica kaber (D.C) Wheeler, Barbarea vulgaris R. Br. and Daucus carota L. supplied nectar and resulted in D. insulare longevity and fecundity equal...
متن کاملEfficacy of Leptospermum petersonii oil, on Plutella xylostella, and its parasitoid, Trichogramma pretiosum.
The efficacy of lemon-scented tea tree oil (LSO), Leptospermum petersonii (FM. Bailey), was evaluated against the diamondback moth, Plutella xylostella (L.) under laboratory conditions. Feeding activity and development of larval stages were significantly reduced on broccoli leaves that had been dipped in LSO. Oviposition deterrence was also found when an adult stage was exposed to treated leave...
متن کاملComparison of Diadegma insulare (Hymenoptera: Ichneumonidae) and Microplitis plutellae (Hymenoptera: Braconidae) as biological control agents of Plutella xylostella (Lepidoptera: Plutellidae): field parasitism, insecticide susceptibility, and host-searching.
Parasitism of Plutella xylostella (L.) third and fourth instars was evaluated in a cabbage field in Geneva, NY, in 1999. Over the entire season, average parasitism was 33.6% for third instars and 53.6% for fourth instars, and the main parasitoids were Diadegma insulare (Cresson) and Microplitis plutellae Muesbeck. In the early season, total parasitism was low, and mainly caused by D. insulare. ...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2013
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0073901