Anyone with an interest in plants or insects, anyone who cares for a lawn, grows a crop, or enjoys an outdoor walk sooner or later will notice galls. The purpose of this booklet is to provide brief answers to some of the common questions that people ask about galls and...
Diagnoses, synonymies, range maps, and an illustrated key are provided for the six species of Halictus found in the Northwest: H. confusus, H. farinosus, H. ligatus, H. rubicundus, H. tripartitus, and H. virgatellus. Observations by Chandler, Dolphin, and Roberts on nesting and foraging behavior is combined with a review of...
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Key to the Halictus Species of the PacificNorthwest
Diagnoses, synonymies, range maps, and an illustrated key are provided
for the six species of Agapostemcn found in the Northwest: A. angelicus, A.
coloradinus, A. femoratus, A. melliventris, A. texanus, and A. virescens.
Adults of both sexes of A. virescens share a nest. Peculiar linearly paired
male-female cells in nests...
A study of precipitation and yield levels in fallow-wheat rotations at three
Pacific Northwest locations demonstrated that in the Columbia Plateau region,
the variability and skewness of precipitation increased with decreasing mean
amounts of precipitation. The seasonal distribution of precipitation had a
marked effect on wheat yield. Comparisons of precipitation...
Published February 2008. Revised December 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This publication describes raspberry cultivars, including red, yellow, black, and purple types. It explains the difference between floricane-fruiting and primocane-fruiting cultivars, includes information on commercial value, and identifies which cultivars work well for home gardens.
Published November 1978. 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 April 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
When you establish a new pear orchard, the proper choice of rootstock is as important as the choice of variety and site. This is true because the rootstock is involved in determining two key factors: your variety's susceptibility to several serious diseases, and your tree's performance
in your climate and...