Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
From inside the book
Results 1-3 of 35
Page 35
... recorded by mid - December . By early April , virtually all tall fescue , cocksfoot and uninfected ryegrass , and about half of endophyte - infected ryegrass tillers , had been killed by stem weevil larvae . Stem weevil larval densities ...
... recorded by mid - December . By early April , virtually all tall fescue , cocksfoot and uninfected ryegrass , and about half of endophyte - infected ryegrass tillers , had been killed by stem weevil larvae . Stem weevil larval densities ...
Page 86
... recorded at Rotorua airport . The 0900 hr R.H. was 58 % ; maximum and minimum temperatures were 18.8 ° C and 2.2 ° C respectively . All the plots ( including untreated controls ) were kept weed free throughout by hand weeding and spot ...
... recorded at Rotorua airport . The 0900 hr R.H. was 58 % ; maximum and minimum temperatures were 18.8 ° C and 2.2 ° C respectively . All the plots ( including untreated controls ) were kept weed free throughout by hand weeding and spot ...
Page 253
... recorded . When pirimicarb was applied at the flag leaf sheath extension stage in four trials , aphid numbers did not subsequently recover above 11 / tiller , and grain yields were increased by more than 10 % over untreated controls ...
... recorded . When pirimicarb was applied at the flag leaf sheath extension stage in four trials , aphid numbers did not subsequently recover above 11 / tiller , and grain yields were increased by more than 10 % over untreated controls ...
Contents
Author Index | 9 |
PASTURE PESTS | 15 |
Field testing of seed protectants against black field cricket attack | 22 |
Copyright | |
29 other sections not shown
Other editions - View all
Common terms and phrases
39th N.Z. Weed adult alachlor aphid application asparagus assessed atrazine beetle benomyl biological control buprofezin BYDV Californian thistle captafol chemicals chlorpyrifos clopyralid cover crawlers crop damage density diazinon discoideus disease DSIR effect eggs fensulfothion field foliage formulation fruit fungicides glyphosate gorse grass grub greedy scale growers growth haloxyfop EE harvest herbicides hexazinone increased infested insect insecticide insensitive instar kg ai/ha kiwifruit larvae leaf litres litres/ha lucerne metalaxyl metsulfuron mg ai/litre miticides mortality nematodes numbers orchard P.O. Box Palmerston North paraquat parasite pasture pathogens persimilis Pest Control Conf pesticides plants plots population porina Proc prochloraz ragwort rates reduced regrowth replicates Research residues root Ruakura ryegrass samples season seed treatments seedlings significant significantly Silwet Sitona soil spears species spray sprayer surfactant Table tamarillo tested trees trials trifluralin untreated control vinclozolin vines Weed and Pest weed control weeks whitefly yield Zealand