Proceedings of the New Zealand Weed and Pest Control Conference1969 - Pesticides |
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Page 244
... pupae per square foot . TRIAL 8A - Takapau , Hawke's Bay - laid on a fine Matamau silt loam at field capacity on 6/2/69 during light rain . The only damage apparent at this site was attributable to the grass grub infestation of the ...
... pupae per square foot . TRIAL 8A - Takapau , Hawke's Bay - laid on a fine Matamau silt loam at field capacity on 6/2/69 during light rain . The only damage apparent at this site was attributable to the grass grub infestation of the ...
Page 245
... pupae were found at treatment ( Trial 7 ) . Field experience has shown that , with many organophosphate insecti ... pupal counts ) show that significant control of grass grub larvae can be obtained from the treatment of pasture with ...
... pupae were found at treatment ( Trial 7 ) . Field experience has shown that , with many organophosphate insecti ... pupal counts ) show that significant control of grass grub larvae can be obtained from the treatment of pasture with ...
Page 288
... Pupae are found from late November through Decem- ber into January . Sampling indicated that the pupal state lasted approxi- mately four weeks . There does not appear to be any overlap of genera- tions a one - year cycle appears to be ...
... Pupae are found from late November through Decem- ber into January . Sampling indicated that the pupal state lasted approxi- mately four weeks . There does not appear to be any overlap of genera- tions a one - year cycle appears to be ...
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