Before spraying for diamondback moth larvae, make sure that: 1. Large areas within the field have reached the nominal threshold of 25% or more of the leaf area lost. 2. Diamondback larvae are still present. 3. They are actively feeding. (Many diamondback moth larvae may have started to cocoon (pupate) and are no longer a threat.) 4. Newest leaves are…
Canola Watch Posts
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Early blackleg infection — from the cotyledon to 3-4 leaf stages — leads to the greatest yield loss. If growers see blackleg lesions on cotyledons or leaves early in the season, this may indicate a greater risk of potential blackleg problems. Fungicides are registered for blackleg management in canola…
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Add diamondback moth larvae to your early season scouting list. Growers cannot expect insecticide seed treatment to protect canola from diamondback moth larvae, so spraying may be necessary in some fields or parts of fields. Before spraying, make sure that: 1. Large areas within the field have reached the nominal threshold of 25% or more of the leaf area lost…
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2012 is a bad year for flea beetles. The flea beetle threat continues all across the Prairies. Seed treatments for canola seeded in late April or early May will be……
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If an insect or disease threat is present at economic thresholds and within the weed control window, applying herbicides with other pest control products can add to production efficiency and cost management. Before mixing, make sure all products are compatible. And if they are compatible, they may have strict rules for mixing order…
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Keep it simple — compare only treated and untreated strips. Mark the strips and take them to yield. Do an economic analysis. Work with other agronomists and other growers and compare results…