Proceedings of the New Zealand Weed and Pest Control Conference, Issues 32-331979 - Pesticides |
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Page 175
... levels recorded in these studies however were much lower than those recorded for BGLA ( Fig . 1 Kain et al 1979 ) . The severe aphid damage experienced in these studies caused a marked increase in the weed content of lucerne in late ...
... levels recorded in these studies however were much lower than those recorded for BGLA ( Fig . 1 Kain et al 1979 ) . The severe aphid damage experienced in these studies caused a marked increase in the weed content of lucerne in late ...
Page 183
... levels of lucerne at six weekly and base bud movement and flight at Masterton and aphid levels ( 1976-77 ) and flight ( 1977-78 ) Dannevirke . MASTERTON at 8 8 8 8 NOS / STEM 220 SIX WEEKLY 80 40 60 BASE BUD 20 300 t , 60 FLIGHT 40 20 ...
... levels of lucerne at six weekly and base bud movement and flight at Masterton and aphid levels ( 1976-77 ) and flight ( 1977-78 ) Dannevirke . MASTERTON at 8 8 8 8 NOS / STEM 220 SIX WEEKLY 80 40 60 BASE BUD 20 300 t , 60 FLIGHT 40 20 ...
Page 116
... levels . Most pesticides are organic compounds ( based on a carbon skeleton ) and the following schema gives an outline of the procedures that are normally used to measure their residues : 1 . 2 . 3 . 4 . Subdivision of the crop sample ...
... levels . Most pesticides are organic compounds ( based on a carbon skeleton ) and the following schema gives an outline of the procedures that are normally used to measure their residues : 1 . 2 . 3 . 4 . Subdivision of the crop sample ...
Contents
Presidential Address | 17 |
Control of meadow barley grass in pasture by the use of herbicides | 31 |
Initial studies into direct drilling of lucerne in Marlborough R I | 40 |
Copyright | |
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32nd N.Z. Weed activity adult Agric Agricultural alachlor application assessed atrazine Auckland azinphos-methyl bait barley BGLA black beetle browntop Canterbury chemical Christchurch crop cultivars damage density difenzoquat disease DSIR effect ester evaluation field crickets foliage fruit glyphosate gorse gorse seedlings grass grub grazing greedy scale growth harvest herbicides hexazinone increase infection insecticide isazophos Kain kiwifruit larvae leaf levels linuron litres litres/ha lucerne maize manuka mefluidide method mite mortality nematode numbers P.O. Box paddocks Palmerston North paraquat pasture pea aphid permethrin Pest Control Conf pesticides picloram plants plots populations Proc procymidone production programme pyrethroid reduced regrowth replicates residues Ruakura ryegrass samples season seed significant significantly simazine soil soldier fly sown species spray stem survival synthetic pyrethroid Table tested thistles tolerance toxicity treated treatments triadimenol trial untreated Weed and Pest weed control weeks weight white clover wild oat yield Zealand