Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
From inside the book
Results 1-3 of 49
Page 126
126 SCREENING INSECT PATHOGENS FOR PEST CONTROL P . J . WIGLEY ,
L . A . MALONE and S . DHANA D . S . I . R ... SUMMARY A range of endemic and
exotic insect viruses and protozoa have been tested for oral infectivity to grass ...
126 SCREENING INSECT PATHOGENS FOR PEST CONTROL P . J . WIGLEY ,
L . A . MALONE and S . DHANA D . S . I . R ... SUMMARY A range of endemic and
exotic insect viruses and protozoa have been tested for oral infectivity to grass ...
Page 211
Field spraying has not been completely effective because of the rapid growth of
the crop and because the insects ... Dipping in insecticide was also not wholly
effective although it substantially reduced live insect numbers on the spears .
Field spraying has not been completely effective because of the rapid growth of
the crop and because the insects ... Dipping in insecticide was also not wholly
effective although it substantially reduced live insect numbers on the spears .
Page 224
THE EFFECTS OF CROP DIVERSITY ON INSECT PESTS AND YIELD OF
CABBAGE G . J . KENNY * and R . B . CHAPMAN Entomology Department ,
Lincoln College , Canterbury SUMMARY An experiment was carried out to
examine the ...
THE EFFECTS OF CROP DIVERSITY ON INSECT PESTS AND YIELD OF
CABBAGE G . J . KENNY * and R . B . CHAPMAN Entomology Department ,
Lincoln College , Canterbury SUMMARY An experiment was carried out to
examine the ...
What people are saying - Write a review
We haven't found any reviews in the usual places.
Contents
Presidential Address | 13 |
Effect of application volume and spray additive concentration on the control | 89 |
The effect of metsulfuron on sweet brier M McD Turner G Iggo | 95 |
Copyright | |
11 other sections not shown
Other editions - View all
Common terms and phrases
activity adult aphid application asparagus assessed Auckland block caused Centre chemicals clopyralid compared counts cover crop damage density DISCUSSION disease DSIR effect eggs emergence establishment experiments field formulation four fruit fungicides gave glyphosate gorse grass grass grub ground growth Hamilton harvest height herbicide higher important increased indicated infested insect insecticide kg ai/ha larvae leaf leaves less levels lower lucerne March Mean measured METHODS months mortality North numbers observed occurred P.O. Box pasture Pest Control Conf plants plots population present Private Proc production pupae ragwort range rates reduced REFERENCES replicates reported Research residues root ryegrass samples scale season seed seedlings showed significant significantly similar soil spears species spray spring stage stem Table tested thistle treated treatments trees trials untreated vines Weed and Pest weed control weeks weevil whitefly yield Zealand