Proceedings of the New Zealand Weed and Pest Control Conference, Issue 401987 - Pesticides |
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Page 64
... disease can cause losses of up to 50 % of spears during long wet periods in early spring . Losses in total production are often underestimated by the growers as the disease occurs below ground . Phytophthora rot on asparagus was first ...
... disease can cause losses of up to 50 % of spears during long wet periods in early spring . Losses in total production are often underestimated by the growers as the disease occurs below ground . Phytophthora rot on asparagus was first ...
Page 66
... disease control . Although a similar effect was observed by Falloon ( 1986 ) , the present result could have been influenced by different climate or inoculum levels . As there was no significant difference in yield or in number of ...
... disease control . Although a similar effect was observed by Falloon ( 1986 ) , the present result could have been influenced by different climate or inoculum levels . As there was no significant difference in yield or in number of ...
Page 78
... disease causing leaves to drop during summer ( Menzies 1980 ) . This note describes purple spot on asparagus , pathogenicity of fungal isolates and fungicide testing for disease control . Symptoms Purple spot appears as oval to ...
... disease causing leaves to drop during summer ( Menzies 1980 ) . This note describes purple spot on asparagus , pathogenicity of fungal isolates and fungicide testing for disease control . Symptoms Purple spot appears as oval to ...
Contents
Author Index | 9 |
Rules of the Society | 15 |
Control of barley yellow dwarf virus BYDV disease of barley in mid | 18 |
22 other sections not shown
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40th N.Z. Weed adult aethiopoides aphid apple application asparagus assessed atrazine Auckland barley BYDV Canterbury captafol chemical Chilean needle grass clopyralid crop cultivars cyhexatin damage density diameter diazinon dichlorvos discoideus disease dormant buds DSIR effect eggs flower fumigation fungicides g ai/100 litres gastropod glyphosate Goldson grass grub growth regulators haloxyfop harvest Hawkes Bay herbicides increased infection inflorescence insecticides kg ai/ha kiwifruit larvae leaf levels Lincoln College linuron lucerne mancozeb mefluidide metalaxyl metiram metribuzin mite miticides mortality nectarines nematodes numbers organotin P.O. Box paclobutrazol parasitoid pasture perennial ryegrass permethrin persimilis Pest Control Conf pesticide pesticide resistance pirimiphos-methyl plant growth plots population predator Proc prochloraz propiconazole reduced replicates Research resistance management samples season seed seedlings significantly simazine slug soil species spray stages surface Table temperature terbuthylazine thrips tillers toxicity translocation treatment trees triadimenol trial turf uptake Weed and Pest weed control whitefly yield Zealand