Pocket Guide for
in Pacific Northwest Hops
In tandem with the Field Guide below, this handy Pocket
Guide, released in January 2010, provides a comprehensive resource for integrated
pest management in hops. This full-color guide is packed with photos to aid in
in-field diagnosis of pest and beneficial arthropods, diseases, weeds, nutrient
deficiencies, and herbicide damage. Text is provided in both English and Spanish.
in Pacific Northwest Hops
This 84-page, full-color handbook addresses the management of disease,
weed, and arthropod pests as well as beneficial organisms in hops
within an integrated framework. A collaborative project between
WSU, Oregon State University, University of Idaho, and USDA-ARS,
the handbook was funded by a grant from the EPA/ CSREES' Pesticide
Safety Education Program. The handbook includes over 200 color
photos to aid hop yard managers and field workers in identifying
pest and beneficial organisms in the field.
Seed "Alternatives to Burning"
An interdisciplinary team of WSU and USDA-ARS research scientists
representing entomology, plant pathology, and weed science
sought and received funding from the Washington State Department
of Ecology in May of 2005 to conduct research on the economy
and pest management implications of various potential alternatives
to burning alfalfa seed stubble. The results of these studies are
presented in the following reports:
at WSU Prosser
Seed treatments against seed corn maggot were conducted in 2002.
As a result of this work, low-toxicity imidacloprid was subsequently
registered as a seed treatment, resulting in a decrease of diazinon
use by some 4,000 lb annually on the part of Washington State carrot
growers. Click on link below.
Onion Research at WSU Prosser
Onion thrips and Western flower thrips are key pests of dry
bulb onion in Washington State. Results from research conducted
2005-2007 show best approach to onion thrips management. Earlier
studies found Western flower thrips to
be more abundant than onion thrips and that thrips were more
abundant within onion fields compared with weedy field borders.
Insecticide efficacy trials in 2002 showed that no insecticide
tested was successful in suppressing thrips for more than two weeks.
Research at WSU Prosser
control was documented for many of the insecticides tested against
spotted cutworm in mint. Similarly, many acaricides successfully
suppressed two-spotted spider mite in mint efficacy trials, but
also suppressed predatory mites. The miticide abamectin, and the
insecticides acephate and chlorpyriphos, proved significantly lethal
to both species of predators in leaf-disk bioassays. Repellency
and repulsiveness behaviors in two-spotted spider mite were examined
for pesticides utilized in mint.
generations of spotted cutworm were observed in mint. It is the
second generation that overwinters and causes damage in mint the
mint grower survey was conducted across Washington in 2003. Growers
were polled on pest management practices and results were compared
to a 1995 Washington mint survey. The results, indicating changes
in pests, pesticide usage, and pest management practices, were published
in two (short version and long version) WSU Extension Bulletins
which are linked below.
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