Post-Harvest
Decision Making Matrices
Pest |
Brief Description |
Damage / Reason for Concern |
Monitoring Approaches |
Decision Points / Tolerances |
Management Options |
Follow Up |
|---|---|---|---|---|---|---|
INSECTS |
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Aphids |
Winged aphids are being produced again at this time. Most aphid populations are being kept in check by natural predators. |
Deformation of leaves. |
Check 5 leaves at each plant. |
Consider treatment if in a scorch virus area and more than 10% of leaves checked have more than 5 aphids per leaf. |
Reduce excessive nitrogen use. Aphids (and other piercing/ sucking insects) are attracted to high nitrogen tissues. Foster habitat for beneficial insects. Chemical control. |
Continue scouting for aphid and beneficial insect populations. |
Root Weevils |
Obscure root weevil adults are more numerous in September and October. They are ¼ inch long with a wavy brown line across the back towards the rear. |
Feeding damage on foliage and new stem growth. |
Inspect leaves for notching damage. Shake plant onto cloth or use beating tray to find adults in foliage. Inspect soil under plants for larval root weevils. |
Consider treatment if damage has been seen in the current season. |
Beneficial nematodes can be used. Apply in early Autumn when soil temperatures are warm and rainfall is common. |
|
Tent Caterpillars and Fall Webworms |
Fall webworm tents may be present until the middle of September. Tent caterpillars will overwinter as egg masses on stems. Egg cases appear as brown or gray foam like substance. |
Defoliation of plant. |
Inspect branches for overwintering egg cases. Monitor entire field for tents of caterpillars |
|
Hand pick or prune out branches with egg masses. Dormant oils may be applied in January and February. |
Begin scouting in spring for emerging caterpillars. |
DISEASES |
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Mummyberry |
Inoculum for next season is as dropped fruit from this season. |
Loss of yield due to infected fruit. |
Scout for mummyberries fallen to the ground. |
If there has been a problem with this disease, consider treatment. |
Following harvest, cultivate shallowly to bury mummies. Chemical |
|
Godronia Canker |
The red flag of dying leaves may be noticed if infection is present. Bull’s eye cankers are still a good indicator. |
Stem girdling when cankers get large. |
During pruning, monitor for cankers and red flag leaves. |
No tolerance established |
Prune out infected wood. |
Educate pruning crew on how to identify infection and how to prune out infected wood. |
Bacterial Blight |
Reddish black to brown cankers may be seen. |
Stem girdling, death of buds. |
During pruning, monitor for cankers. |
No tolerance established |
Prune out infected wood. Chemical |
Educate pruning crew on how to identify infection and how to prune out infected wood. |
Botrytis |
Infected stems appear tan or gray; black sclerotia may be seen |
Reduces fruit quality and yield. |
Inspect plants for symptoms on shoot tips. |
No established tolerance |
Prune out infected wood and keep canopy open to encourage good air circulation. |
Look for infected stems during pruning. |
Vertebrate Pests |
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Voles |
Small rodents tunnel through soil causing air pockets in the root zone. They will also feed on roots |
Can eat roots and girdle crowns. |
Set up a monitoring station using PVC pipe and apple wedge. Check for feeding damage on the apple wedge. |
20-40% of monitoring stations are positive for feeding damage |
Habitat reduction. |
Monitor again 2-3 weeks following treatment to evaluate efficacy. |
Secondary content using h2 tag. Column 2
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Heading using the h3tag
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