Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 234
... leaf spot , equal to or more severe than the paddocks selected for the spray trials . SPRAYED 4 UNSPRAYED 0 3 2 1 25 ... leaf spot on wheat at six stages during the growing season . The top half of each leaf ' represents the sprayed ...
... leaf spot , equal to or more severe than the paddocks selected for the spray trials . SPRAYED 4 UNSPRAYED 0 3 2 1 25 ... leaf spot on wheat at six stages during the growing season . The top half of each leaf ' represents the sprayed ...
Page 125
... leaf Weeds present wireweed 4 leaf 4 Nov. early bulb willow weed ( Polygonum persicaria ) 4 leaf twin cress 8-12 leaf wireweed up to 500 cm dia . willow weed 20-30 cm dia . twin cress up to 500 cm dia . Trial 2. Four replications 1975 ...
... leaf Weeds present wireweed 4 leaf 4 Nov. early bulb willow weed ( Polygonum persicaria ) 4 leaf twin cress 8-12 leaf wireweed up to 500 cm dia . willow weed 20-30 cm dia . twin cress up to 500 cm dia . Trial 2. Four replications 1975 ...
Page 210
Pulmi per leaf Pulmi per leaf N Figure 1 shows population trends on the trees receiving fungicides only . ERM numbers did not exceed 1 / leaf until mid - January and for the remainder of the season did not exceed 1.5 / leaf . At this ...
Pulmi per leaf Pulmi per leaf N Figure 1 shows population trends on the trees receiving fungicides only . ERM numbers did not exceed 1 / leaf until mid - January and for the remainder of the season did not exceed 1.5 / leaf . At this ...
Contents
Chairmans summary | 1 |
Notillage establishment of lucerne G C Atkinson | 9 |
Insects affecting lucerne seed production | 19 |
Copyright | |
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Common terms and phrases
29th N.Z. Weed activity adults Agric Agricultural Research Centre alachlor aphid application areas assessed asulam atrazine Auckland autumn azinphos-methyl barley grass benomyl BGLA black beetle blue-green lucerne aphid brassicas Canterbury carbofuran chemical chlorpyrifos Christchurch crop cultivars cypermethrin damage diflubenzuron disease DSIR effect emergence ethofumesate fensulfothion field trials foliage fungicides germination gorse granules grass grub growth Hamilton harvest herbicides increased insect insecticides isazophos kg/ha larvae leaf legumes Lincoln linuron litres/ha lucerne lucerne yield maize method mite nematode North Island numbers oats P.O. Box Palmerston North paraquat pasture Pest Control Conf phorate picloram plants plots population post-emergence Proc pyri rates reduced replicates residual resistant Ruakura Ruakura Agricultural Research ryegrass samples season seed seedlings significant significantly soil sowing sown species spray sprayer spring stage summer Table tested treatments triclopyr untreated Weed and Pest weed control weeks weevil Wellington white clover white-fringed weevil Zealand