Proceedings of the New Zealand Weed and Pest Control Conference, Issues 32-331979 - Pesticides |
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Page 146
... farms by intensity of cropping : 1 . 2 . 3 . 4 . The farms were divided into the following cropping categories : Farms with a 1st yr crop but no 3rd yr crop ( 66 farms ) Farms with a 3rd yr crop but no 1st yr crop ( 9 farms ) Farms with ...
... farms by intensity of cropping : 1 . 2 . 3 . 4 . The farms were divided into the following cropping categories : Farms with a 1st yr crop but no 3rd yr crop ( 66 farms ) Farms with a 3rd yr crop but no 1st yr crop ( 9 farms ) Farms with ...
Page 148
... farmers ) , and ( ii ) that wild oats should be declared a noxious weed ( 38 farmers ) . Table 4. Spraying for wild oat control by intensity of cropping . No. of farms with : 1st yr 3rd yr Both 1st Contin- Total crop crop and 3rd uous ...
... farmers ) , and ( ii ) that wild oats should be declared a noxious weed ( 38 farmers ) . Table 4. Spraying for wild oat control by intensity of cropping . No. of farms with : 1st yr 3rd yr Both 1st Contin- Total crop crop and 3rd uous ...
Page 150
... farms . Of the previous survey farms , 13 had had two fields surveyed and 15 , one field surveyed . Of the latter group 2 of the farms visited this time had no crop . In all 113 fields were inspected , 10 from the two " no wild oat ...
... farms . Of the previous survey farms , 13 had had two fields surveyed and 15 , one field surveyed . Of the latter group 2 of the farms visited this time had no crop . In all 113 fields were inspected , 10 from the two " no wild oat ...
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