Prey selection was assumed to be a vital strategy to maximize the fitness of predators. Visual cues are important for predators to locate a prey, and several species of lady beetles have been reported to prefer the red morph pea aphid Acyrthosiphon pisum rather than the green morph in empty containers with different colors. However, the preference of a predator on the red and green color morphs...

The study was conducted with BD-7320, BD-7328, BD-9952, BD-10154, BD- 10158, BARI Begun-1, BARIBegun-4, BARIBegun-5, BARIBegun-6, BARIBegun-7, BARIBegun-8 and BARIBegun-9 germplasms of brinjal a view to understanding the effect temperature, relative humidity, rainfall predators on incidence aphid during September 2018 March 2019. Aphid infestation started from last week November highest recorde...

This report summarises our current knowledge of the New Zealand indigenous aphid fauna. Size of fauna. Based on present knowledge, estimates of the size of the New Zealand indigenous aphid fauna range from 12 to 16 species. Six indigenous species have been fully described and named. A further six species are almost certainly indigenous to New Zealand but have not been fully described. There is ...

Robust analyses of noisy, stage-structured, irregularly spaced, field-scale data incorporating multiple sources of variability and nonlinear dynamics remain very limited, hindering understanding of how small-scale studies relate to large-scale population dynamics. We used a novel, complementary Bayesian and frequentist state-space model analysis to ask how density, temperature, plant nitrogen, ...

Sowing plants that provide food resources in orchards is a potential habitat management practice for enhancing biological control. Flowering (providing pollen and nectar) grasses alternative prey) can benefit natural enemies orchards; however, little known about their relative importance. We studied the effect of practices (flower strips, grass spontaneous grass) on arthropod predators under or...

Local generalist predators can be exploited in conservation biological control of agricultural pests. To conserve and promote the most important predators, it is critical to have detailed knowledge about their prey range under natural conditions. I have studied predator-prey interactions between lycosid spiders from the genus Pardosa and a major aphid pest in spring-sown cereals; Rhopalosiphum ...

Aphids are a worldwide pest and an important model in ecology and evolution. Little is known, however, about the genetic structure of their colonies at a microgeographic level. For example, it remains largely unknown whether most species form monoclonal or polyclonal colonies. Here, we present the first detailed study on levels of clonal mixing in a nonsocial facultative ant mutualist, the blac...

Biosketch. Linton Winder's research interests relate to the population dynamics of generalist predators and their prey, and in particular how spatio-temporal pattern mediates such interactions. Summary The spatio-temporal dynamics of two aphid species (Metopolophium dirhodum and Sitobion avenae) and a generalist predator (Pterostichus melanarius) were observed in a field-scale study using a gri...