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A Seed Producers Viewpoint
Seed Certification N L Shillito
Cleaner Seed by Machine Dressing J R Hartley
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acre activity adult Agriculture aphid appear application areas assessment atrazine Auckland barley grass Canterbury carried caused cereal chemicals Christchurch clover compared Conf cost counts crop damage Department diazinon discussed Division early economic effect emergence established experiments farm farmers feed fensulfothion field formulations further gave give given grain granules grass grub growth height herbicides important included increase indicated infestation insecticide larvae less lindane lucerne materials means measures method mixture months North obtained occurred P.O. Box paraquat pasture period Pest Control plants plots population porina possible present problem Proc production recorded reduced reported Research residual response sampling season seed showed shown significant soil sowing species spray spring stage standard Summary Table tested tion tolerance treated treatment trials variety weed control weeks yield Zealand