Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
From inside the book
Results 1-3 of 82
Page 177
... production in autumn of 30 % and in winter of 12 % . Mid winter control of aphids gave signifi- cant increases in production of 10 % in winter and 20 % in spring . Significant linear and reciprocal relationships were found to exist ...
... production in autumn of 30 % and in winter of 12 % . Mid winter control of aphids gave signifi- cant increases in production of 10 % in winter and 20 % in spring . Significant linear and reciprocal relationships were found to exist ...
Page 180
... production recorded from subplots with staggered harvest times . DISCUSSION Counts and observations on all trials ... production but carried over into both winter and spring pro- duction ( Table 1 ) . Losses in lucerne production ...
... production recorded from subplots with staggered harvest times . DISCUSSION Counts and observations on all trials ... production but carried over into both winter and spring pro- duction ( Table 1 ) . Losses in lucerne production ...
Page 196
... production . In view of this and as no other insect species capable of causing the trends reported herein were found in the soil or herbage on the trial sites the assumption that , insecticide responses in herbage production arose from ...
... production . In view of this and as no other insect species capable of causing the trends reported herein were found in the soil or herbage on the trial sites the assumption that , insecticide responses in herbage production arose from ...
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