Maize (Zea mays) pollen is highly nutritious and can be used by predatory arthropods to supplement or replace a carnivorous diet. We demonstrate that maize pollen can be utilized by larvae of the green lacewing, Chrysoperla carnea (Neuroptera: Chrysopidae) under laboratory conditions. Complete development on maize pollen was not possible, but 25% of neonates reached the third instar. When only ...

Abstract For herbivorous insects, dropping from the host plant is a commonly-observed antipredator defence. The use of compared to other behaviours and its timing in relation contact with predator was explored both pea aphids ( Acyrthosiphon pisum ) potato Macrosiphum euphorbiae ). Pea dropped more frequently response ladybird adults Adalia bipunctata than lacewing larvae Chrysoperla carnea Pot...

The recent invasion of southern California by the glassy-winged sharpshooter (GWSS), Homalodisca coagulata (Say) (Hemiptera: Cicadellidae), has triggered a statewide control eVort. Management of GWSS will include biological control using resident and imported natural enemies. Currently, very little information is available on the role of generalist predators in suppression of GWSS eggs, nymphs ...

—The recent discovery of herbivores that feed on Ni-hyperaccumulating plants and contain elevated Ni concentrations in their bodies suggests that Ni may be transferred to their predators. We tested this hypothesis using the high-Ni herbivore Melanotrichus boydi and four predator species: the spiders Pholcus phalangioides and Misumena vatia, the mantid Stagmomantis californica and the lacewing C...

The invasive polyphagous cotton mealybug, Phenacoccus solenopsis Tinsley has emerged as a serious sucking pest of cotton. laboratory and field bioassays seven selected insecticides belonging to five toxicant groups were evaluated against P. their most abundant natural predators, Chrysoperla carnea (Steph.) Hyperaspis vinciguerrae Capra. Based on the toxicity index toxic group under conditions w...