Proceedings of the New Zealand Weed and Pest Control Conference1969 - Pesticides |
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Page 276
... larvae are found close to the surface — in the top half inch . They pupate close to the surface to facilitate emergence of the adult fly . The bulk of the larvae are present in the 1 to 2 in . level and smaller larvae at the 3 to 4 in ...
... larvae are found close to the surface — in the top half inch . They pupate close to the surface to facilitate emergence of the adult fly . The bulk of the larvae are present in the 1 to 2 in . level and smaller larvae at the 3 to 4 in ...
Page 288
Larvae in corresponding instars are usually smaller than are grass grub larvae , but can always be distinguished by their nearly black , flatter heads . and the conspicuous dark patch on the sides just behind the head . Under dry ...
Larvae in corresponding instars are usually smaller than are grass grub larvae , but can always be distinguished by their nearly black , flatter heads . and the conspicuous dark patch on the sides just behind the head . Under dry ...
Page 302
... larvae in established pasture with currently available insecticides , and the feasibil- ity of securing control in pasture by applying treatments against the adult are briefly discussed . TESTS AGAINST LARVAE EXPERIMENTAL The test ...
... larvae in established pasture with currently available insecticides , and the feasibil- ity of securing control in pasture by applying treatments against the adult are briefly discussed . TESTS AGAINST LARVAE EXPERIMENTAL The test ...
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