This study was conducted to test the performance of
four species of stored grain beetles in competition at
three levels of moisture and temperature. The insects
used in these tests were the granary weevil, the rice
weevil, the saw-toothed grain beetle and the red flour
beetle. The experiments were conducted...
Published July 1967. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published November 1985. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Surveys by industry groups indicate that an alarming percentage
of grain shipments in the Pacific Northwest are contaminated by dead
rodents and birds, rodent hairs and droppings, and bird feathers and
droppings.
The U. S. Food and Drug Administration has recently announced
a program intended to prevent contaminated grain for...
Armyworm caterpillars can be a troublesome pest in cereal grains grown in the Pacific Northwest states. This publication presents information about the pest and its control.
The wheat head armyworm (Faronta diffusa) is a troublesome pest in cereal grains in the Pacific Northwest. This publication describes the life cycle, behavior, distribution, and feeding of the wheat head armyworm. Guidance on identification and control of the pest is also provided.
This study was conducted to determine the effects of insect
infestation on areas of heating in stored grain, and to demonstrate
the ability of four species of insects to initiate or promote the
spread of these heating areas. The four insects used were the
granary weevil Sitophilus granarius (L.), the...
The seasonal life history of the cereal stem moth (CSM), Ochsenheimeria
vacculella Fischer von Roslerstamm, (Lepidoptera : Ochsenheimeriidae) was investigated
in a commercial field of annual ryegrass in the Willamette Valley, OR from January
1993 to August 1994. Phenology of life stages, effect of temperature on eclosion, and
development of...
Winter grain mite, Penthaleus major (Duges), is a small, colorful, cool season mite that damages grass and cereal crops throughout the Pacific Northwest as well as in most other temperate regions of the world. Hosts include most cereals and grasses of economic importance. Winter grain mite has been a frequent...