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Spraying for lygus bugs and cabbage seedpod weevil has begun in southern Alberta, and diamondback moth larvae are showing up in higher numbers. The critical time for diamondback moth larvae……
Canola Watch Posts
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An agronomist from Oakville, Manitoba, was called out to a Roundup Ready canola field in sandier soil. Many canola plants throughout the field were bent and growing horizontally. The……
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Issues of the week: July 7, 2010 — Spraying to prevent sclerotinia stem rot has begun, and flowering fields will move quickly through the spray window. Fields at 20% flower……
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Peace (B.C. and Alberta): High Prairie and north had an inch or more of rain in the past week and canola looks good. The rest of the Peace was hit……
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Top dressing nitrogen after 30% flowering provides very little if any economic benefit. But sulphur topdress may provide a benefit at this stage for deficient crops. Click here for more on……
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The decision to spray petals to prevent sclerotinia stem rot depends on 3 key questions: 1) Have conditions been moist over the past few weeks for apothecia development and survival?……
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Fungicide to protect the crop from sclerotinia stem rot infection must be applied to petals before infected petals start to drop into the canopy. Petal drop starts after 30% flower,……
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If crop staging is widely variable and if fungicide is needed to prevent sclerotinia stem rot, a split application may be worthwhile. The first application can be made when the……
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If a field has cabbage seedpod weevil and diamondback moth feeding, should economic spray thresholds be reduced to account for the combined pressure? In the case of these two species,……