Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
From inside the book
Results 1-3 of 66
Page 189
CONTROL OF BRASSICA APHID AND BLUE - GREEN LUCERNE APHID WITH CHLORPYRIFOS C. J. SHARPE and B. N. MacDIARMID Ivon - Watkins - Dow Ltd , Dunedin and New Plymouth . Summary In four trials ( two aerial ) on brassica aphid ( Brevicoryne ...
CONTROL OF BRASSICA APHID AND BLUE - GREEN LUCERNE APHID WITH CHLORPYRIFOS C. J. SHARPE and B. N. MacDIARMID Ivon - Watkins - Dow Ltd , Dunedin and New Plymouth . Summary In four trials ( two aerial ) on brassica aphid ( Brevicoryne ...
Page 153
... aphids were applied early , at either rate , they reduced plant growth , and aphid increase was limited . Thus on plants infested with 5 aphids / plant at the cotyledon stage , aphid numbers reached a maximum of 8 aphids / plant , but ...
... aphids were applied early , at either rate , they reduced plant growth , and aphid increase was limited . Thus on plants infested with 5 aphids / plant at the cotyledon stage , aphid numbers reached a maximum of 8 aphids / plant , but ...
Page 178
... aphid infestation but also its tolerance to aphid damage . In view of this plots ( 6 x 11 m ) were split longitudinally into two subplots . One subplot was cut at the early regrowth ... APHIDS / STEM 20 TABLE 2 178 Blue - Green Lucerne Aphid.
... aphid infestation but also its tolerance to aphid damage . In view of this plots ( 6 x 11 m ) were split longitudinally into two subplots . One subplot was cut at the early regrowth ... APHIDS / STEM 20 TABLE 2 178 Blue - Green Lucerne Aphid.
Contents
Chairmans summary | 1 |
Notillage establishment of lucerne G C Atkinson | 9 |
Insects affecting lucerne seed production | 19 |
Copyright | |
27 other sections not shown
Other editions - View all
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