Proceedings of the New Zealand Weed and Pest Control Conference1969 - Pesticides |
From inside the book
Results 1-3 of 5
Page 7
... WEEVIL Results of Laboratory Screening Tests with Insecticides for Control of White - fringed Weevil Larvae and Adults Chairman's Summary ( J. M. Hoy ) D. H. Todd 301 339 PORINA Porina Caterpillar An Economic Study of the Use of 7.
... WEEVIL Results of Laboratory Screening Tests with Insecticides for Control of White - fringed Weevil Larvae and Adults Chairman's Summary ( J. M. Hoy ) D. H. Todd 301 339 PORINA Porina Caterpillar An Economic Study of the Use of 7.
Page 305
... weevil enclosure in position . with insecticides not evaluated further , and with materials showing low toxicity when tested at a range of dosages are shown in Table 2 . Probit analysis ( Finney , 1947 ) carried out on data in Table 1 ...
... weevil enclosure in position . with insecticides not evaluated further , and with materials showing low toxicity when tested at a range of dosages are shown in Table 2 . Probit analysis ( Finney , 1947 ) carried out on data in Table 1 ...
Page 339
... WEEVIL J. M. HOY DISCUSSION centred on the ease with which white - fringed weevil can be established in new areas and the threat which this insect presented to the pattern of agricultural diversification . At present the only hope for ...
... WEEVIL J. M. HOY DISCUSSION centred on the ease with which white - fringed weevil can be established in new areas and the threat which this insect presented to the pattern of agricultural diversification . At present the only hope for ...
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 | |
35 other sections not shown
Other editions - View all
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