Proceedings of the New Zealand Weed and Pest Control Conference1969 - Pesticides |
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Page 62
... Plots bed Plots P pyrazon pre - emergence 4 13 Sept. 18 Oct. A pyrazon post - emergence 4.8 11 Oct. 29 Oct. L V pyrazon late post - emergence 4.8 lenacil pre - emergence 1.6 3 Nov. Not applied 14 Sept. 18 Oct. Alkylarylpolyglycol ether ...
... Plots bed Plots P pyrazon pre - emergence 4 13 Sept. 18 Oct. A pyrazon post - emergence 4.8 11 Oct. 29 Oct. L V pyrazon late post - emergence 4.8 lenacil pre - emergence 1.6 3 Nov. Not applied 14 Sept. 18 Oct. Alkylarylpolyglycol ether ...
Page 231
... plots , each 3.5 acres . The location and numbering of the plots can be seen in Fig . 3. Dimethoate , a systemic organophosphorus insecticide , was applied from the air at the rate of 4.8 oz a.i./acre on November 27 and December 10. The ...
... plots , each 3.5 acres . The location and numbering of the plots can be seen in Fig . 3. Dimethoate , a systemic organophosphorus insecticide , was applied from the air at the rate of 4.8 oz a.i./acre on November 27 and December 10. The ...
Page 233
... plot 5 still contained aphids at this stage , the average number per head was very low , whereas in the check unsprayed plots ( 1 , 3 , and 6 ) 100 to 150 aphids per head were common . There were two factors contributing to the residual ...
... plot 5 still contained aphids at this stage , the average number per head was very low , whereas in the check unsprayed plots ( 1 , 3 , and 6 ) 100 to 150 aphids per head were common . There were two factors contributing to the residual ...
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