Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
From inside the book
Results 1-3 of 13
Page 253
253 PIRIMICARB SPRAY TIMING FOR ROSE - GRAIN APHID CONTROL IN
BARLEY repeala sipatio M . W . STUFKENS and J . A . FARRELL atrazne 2
peach Entomology Division , DSIR , Lincoln / maiz — 123 men se Spezia
SUMMARY ...
253 PIRIMICARB SPRAY TIMING FOR ROSE - GRAIN APHID CONTROL IN
BARLEY repeala sipatio M . W . STUFKENS and J . A . FARRELL atrazne 2
peach Entomology Division , DSIR , Lincoln / maiz — 123 men se Spezia
SUMMARY ...
Page 254
Two peaks in aphid numbers occurred in sprayed plots – before spraying , and
after the period of effective insecticide cover on the foliage . Immediately after
spraying numbers fell below 1 / tiller . Tables 1 and 2 show data on plant growth ...
Two peaks in aphid numbers occurred in sprayed plots – before spraying , and
after the period of effective insecticide cover on the foliage . Immediately after
spraying numbers fell below 1 / tiller . Tables 1 and 2 show data on plant growth ...
Page 256
256 BARLEY YELLOW DWARF VIRUS AND APHID VECTORS IN
CANTERBURY , 1983 - 85 M . W . STUFKENS and J . A . FARRELL Entomology
Division , DSIR , Lincoln SUMMARY An outbreak of barley yellow dwarf virus (
BYDV ) in ...
256 BARLEY YELLOW DWARF VIRUS AND APHID VECTORS IN
CANTERBURY , 1983 - 85 M . W . STUFKENS and J . A . FARRELL Entomology
Division , DSIR , Lincoln SUMMARY An outbreak of barley yellow dwarf virus (
BYDV ) in ...
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