Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Gerhardt, Paul"'
Autor:
Roney, J. N., Gerhardt, Paul D.
Publikováno v:
CALS Publications Archive. The University of Arizona..
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural librari
Externí odkaz:
http://hdl.handle.net/10150/313882
Autor:
Gerhardt, Paul D.
An experimental application of technical grade malathion was made by helicopter to a mixed planting of vegetables on the University of Arizona Mesa Experiment Station. Technical malathion at the rate of one pint per acre was not phytotoxic to onions,
Externí odkaz:
http://hdl.handle.net/10150/213877
Autor:
Gerhardt, Paul D.
Several seasons of work indicate that topical application of granular pesticides to the whorl of fall grown sweet corn will effectively control the fall armyworm. First application to be made when the corn is approximately 12 inches high, followed by
Externí odkaz:
http://hdl.handle.net/10150/213872
Autor:
Gerhardt, Paul D.
A number of different chemicals have been evaluated for control of cabbage loopers and other lepidopterous pests of cole crops over the past several years. These materials are usually formulated as dusts or emulsifiable concentrates but some have bee
Externí odkaz:
http://hdl.handle.net/10150/213847
Autor:
Gerhardt, Paul D.
Ten percent granular formulations of phorate and Di-Syston at 20 pounds per acre will effectively control psyllids, aphids and thrips on potatoes. Two years study varying the placement of granular systemic insecticides in the soil in relation to the
Externí odkaz:
http://hdl.handle.net/10150/213843