We tested the hypothesis that providing nectar‐producing cover crops will enhance the
biological control of grape leafhoppers (Erythroneura spp.) by Anagrus wasps in commercial …

Insect herbivores respond variably to drought-stressed plants; in some cases herbivore
performance (eg fecundity, survival) is enhanced, in others it is negatively affected. We used …

… had five or more mites per leaf (G. English-Loeb and AP Norton, unpublished work). …
English-Loeb and AP Norton, unpublished work) indicates that domatia increase the densities of …

We observed the number of predatory mites (Phytoseiidae:Typhlodromus caudiglans) on
the foliage of 20 North American species of grapes (Vitis spp) plus the domesticated …

Predaceous arthropods are frequently more abundant on plants with leaves that are pubescent
or bear domatia than on plants with glabrous leaves. We explored the hypothesis that for …

… Karban and G. English-Loeb, personal observations). Only when we fortuitously started …
did we observe caterpillars commonly surviving their parasites (English-Loeb et al. 1993). We …

… My estimate of mite abundance on a dry mass basis would 100 for the control ( 10 mites/0.1
g) and 50 for the drought-stressed plant ( 10 mites/0.2 g), even though they have the same …

The leaf surface of woody perennials is inhabited by an extraordinary diversity of mites.
Although a majority of these mite species are thought to feed on fungi or other microbes, their …

… located in the National Germplasm Repository in Davis, California documents that there
is heritable genetic variation in the presence, number, and shape of domatia (GM English-Loeb, …

Phytoseiid mites, both in agricultural and natural systems, can play an important role in the
regulation of herbivorous mites. Host plant traits, such as leaf pubescence, may influence the …