Results 211 to 220 of about 4,487,467 (249)

RNAi‐based functional genomics tools for the beet leafhopper using microinjection and nanoparticle‐based topical spray

open access: yesInsect Science, EarlyView.
• First demonstration of functional RNAi in the beet leafhopper, Neoaliturus tenellus, using both dsRNA microinjection and star polycation nanoparticle‐mediated topical spray delivery.•Microinjection achieved over 90% knockdown of Gus and Pum3, revealing gene‐specific fitness effects on survival and fecundity in beet leafhopper.•Nanoparticle‐mediated ...
Jinlong Han   +8 more
wiley   +1 more source

Progress in developing insecticides from natural compounds

open access: yes, 1993
Khambay, B. P. S., O'connor, N.
core  

Aphid and endosymbiont sensitivity to heatwaves is misaligned across life stages

open access: yesInsect Science, EarlyView.
Aphids depend on the obligate symbiont Buchnera aphidicola, which may constrain thermal tolerance. Using a factorial heatwave experiment, we exposed nymphs and adults to moderate or extreme temperatures and measured fitness and symbiont responses.
Evatt Chirgwin   +6 more
wiley   +1 more source

Decades of Enclosure Protection Exert Composite Effects on Grassland Grasshopper Communities

open access: yesIntegrative Zoology, EarlyView.
Decades of enclosure protection have altered grasshopper community structure, with species‐specific effects on population dynamics. For the low‐mobility grasshopper Chorthippus fallax, abundance did not differ strongly between exclosure‐protected and overgrazed areas, but its egg development duration was longer in exclosures. The two C.
Dan‐dan Feng   +7 more
wiley   +1 more source

Matrine–Tea Saponin Synergism Involves Suppressed Detoxification and Digestion in a Leaf Beetle

open access: yesIntegrative Zoology, EarlyView.
Tea saponin and matrine showed synergistic toxicity against Plagiodera versicolora. Combined exposure suppressed digestion‐ and detoxification‐related processes, while silencing the trypsin gene Pver105950 and chitinase gene Pver001190 increased larval susceptibility to tea saponin and matrine, respectively.
Owais Khan   +4 more
wiley   +1 more source

EPA Enforcement Actions and Property Prices

open access: yesAccounting &Finance, EarlyView.
ABSTRACT This study examines the effects of Environmental Protection Agency (EPA) enforcement actions on property prices in the United States. Using data on EPA enforcement cases, we assess how investors and homeowners react to regulatory actions to curb environmental violations.
Van Le, My Nguyen, Anh Viet Pham
wiley   +1 more source

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