Proceedings of the New Zealand Weed and Pest Control Conference1969 - Pesticides |
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Page 78
... predicted except roughly for any particular material and rate of application . Whether this loss will be felt by the farmer will depend on the following weather conditions . Herbicides are a valuable aid but by themselves do nothing to ...
... predicted except roughly for any particular material and rate of application . Whether this loss will be felt by the farmer will depend on the following weather conditions . Herbicides are a valuable aid but by themselves do nothing to ...
Page 123
... predict and it would be wiser to obtain this information by continuing our current surveys during the DDT " run- down " period . CONCLUSIONS Most wildlife specimens were sampled during the past five years cor- responding to the last ...
... predict and it would be wiser to obtain this information by continuing our current surveys during the DDT " run- down " period . CONCLUSIONS Most wildlife specimens were sampled during the past five years cor- responding to the last ...
Page 205
... predict with confidence the lowest mortality that will follow a particular treatment . Over the years from 1964 onwards , several field trials have examined the effects of insecticides on porina caterpillar ( Wiseana spp . ) populations ...
... predict with confidence the lowest mortality that will follow a particular treatment . Over the years from 1964 onwards , several field trials have examined the effects of insecticides on porina caterpillar ( Wiseana spp . ) populations ...
Contents
Presidential Address W F Leonard | 15 |
Control of Hornwort Ceratophyllum demersum B E Manson | 23 |
Endothal as an Aquatic Herbicide G W Woon and G W Mason | 30 |
Copyright | |
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Common terms and phrases
abAB acre aphid application areas assessment asulam atrazine Auckland Australian soldier fly autumn barley grass bromus mollis BYDV Canterbury carbetamide cereal aphid chemical chlormequat Christchurch crop damage Department of Agriculture diazinon dicamba diquat disulfoton dry matter effect ester farm farmers fathen fenitrothion fensulfothion formulations gorse grain gran granules grass grub grazing growth harvest heptachlor herbicides increase infestation insecticide ioxynil larvae lb/acre lindane linuron lucerne matagouri MCPA MCPB means and signif methabenzthiazuron mixture N.Z. Weed organophosphate P.O. Box paddock paraquat parathion pasture response peas Pest Control Conf phenmedipham phorate picloram plants plots porina post-emergence Proc production prometryne pyrazon rainfall rates reduced replicates residual ryegrass samples season significant simazine soil sowing sown species spraying Stat Summary Table terbutryne thistle tion Total treated Treatment lb trials trichlorfon Untreated variety Weed & Pest weed control weed seeds wheat white clover willow weed yield Zealand