WHEAT DISEASE EARLY WARNING CHART
DATE: 17, November 1981.
DISEASE PREVALENCE VARIETIES MOST HIGHLY AT RISK CONTROL RECOMMENDATIONS 1 2 3 4 5 MILDEW Hilgendorf and Rongotea Bayleton at 250 millilitres per ha. STRIPE RUST (YELLOW RUST) Hilgendorf and Rongotea Bayleton at 500 millilitres per ha. PREVALENCE: 1. 0—5% crops infected. 3 . 25 — 50% crops infected. 5. 75—100% crops infected. Percentage of crops 2. 5-25% crops infected. 4. 50 - 75% crops infected. inspected in which infection was found. Notes: Weather conditions still remain optimal for stripe rust development. Good control is being maintained with regular spraying, which is controlling all other cereal diseases and crops are looking excellent. This information supplied by Plant Health, MAF; Plant Diseases Division and Crop Research Division, DSIR, Lincoln.
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Press, 20 November 1981, Page 18
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124WHEAT DISEASE EARLY WARNING CHART Press, 20 November 1981, Page 18
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