Proceedings of the New Zealand Weed and Pest Control Conference, Issues 32-331979 - Pesticides |
From inside the book
Results 1-3 of 80
Page 44
... method of application of paraquat is marginal . Maize grown by this method yielded only 41 % of that obtained from maize directly drilled into a weed - free seedbed . The objective of this study was to investigate further minimum - cost ...
... method of application of paraquat is marginal . Maize grown by this method yielded only 41 % of that obtained from maize directly drilled into a weed - free seedbed . The objective of this study was to investigate further minimum - cost ...
Page 25
... Method 2 the spray volume was 54.8 litres / ha . RESULTS AND DISCUSSION Excluding desmetryn which had little effect , plant fresh weight percentages obtained by Method 1 were 9 % to 13 % higher from CDA than from conventional spraying ...
... Method 2 the spray volume was 54.8 litres / ha . RESULTS AND DISCUSSION Excluding desmetryn which had little effect , plant fresh weight percentages obtained by Method 1 were 9 % to 13 % higher from CDA than from conventional spraying ...
Page 133
... methods are used at present . Infected wood is removed or the larvae are hooked out of their tunnels in major branches with fine wire . Estimates of the cost of this method range from 10 - 60 cents per borer . Apart from application of ...
... methods are used at present . Infected wood is removed or the larvae are hooked out of their tunnels in major branches with fine wire . Estimates of the cost of this method range from 10 - 60 cents per borer . Apart from application of ...
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 | |
4 other sections not shown
Other editions - View all
Common terms and phrases
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