Proceedings of the New Zealand Weed and Pest Control Conference1969 - Pesticides |
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Page 123
... problems with some exceptions . In- creasing infestation of wild oats ( Avena spp . ) is a serious problem on arable land . Generally speaking , present purity standards and field inspection standards are satisfactory . More research is ...
... problems with some exceptions . In- creasing infestation of wild oats ( Avena spp . ) is a serious problem on arable land . Generally speaking , present purity standards and field inspection standards are satisfactory . More research is ...
Page 314
... problem . The model which will be described provides a solution to the problem when a number of conditions and simplifying assumptions are made . The conditions and assumptions are listed and discussed below : ( 1 ) The relationship ...
... problem . The model which will be described provides a solution to the problem when a number of conditions and simplifying assumptions are made . The conditions and assumptions are listed and discussed below : ( 1 ) The relationship ...
Page 337
... problem in cereals in New Zealand . It demonstrates in the case of the cereal aphid how a thorough investigation of a pest can lead to an inexpensive and effective method of control , namely , late sowing . The clear description of the ...
... problem in cereals in New Zealand . It demonstrates in the case of the cereal aphid how a thorough investigation of a pest can lead to an inexpensive and effective method of control , namely , late sowing . The clear description of the ...
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