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To reduce drift, use coarse sprays and apply at lower pressure, spray with at least some wind (calm is bad), slow down, consider shrouds, and keep the boom low…
Canola Watch Posts
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Rain has set back weed spraying. Early canola crops are near the end of their spray windows, even though some fields have not received a first pass and some fields got a first pass but need a second. Label application windows: Glyphosate: Anytime up to and including the 6-leaf stage of canola. Liberty: Cotyledon stage up to the early bolting…
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Heavy rains can increase nitrogen and sulphur leaching in lighter soils, and increase denitrification in heavier soils. While very good soil moisture conditions may increase canola yield potential, those rains may have depleted the nitrogen reserves somewhat. Top dressing is an option. Read more for topdressing tips… -
Cutworms can leave canola fields with bare patches, clipped plants and large chunks out of stems and leaves. Flocks of birds — crows, gulls, etc. — can be a sign that cutworms are present in large numbers, but nothing beats digging to confirm your suspicions. Cutworm thresholds are based on stand reduction, not actual cutworm counts. The threshold for canola… -
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… -
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… -
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… -
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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What caused these bent hypocotyls? Click Read More to make your answer…
