This post contains a summary of trap counts for June 18-24, 2019. The numbers reported are number of SWD per trap.
The regional monitoring program is being conducted in berry and stone fruit crops and grapes in Essex, Chatham-Kent, Elgin, Norfolk, Niagara, Durham, Ottawa/Carleton and Northumberland counties.
The monitoring project is supported by a grant from the Canada Adaptation Program and collaboration among Niagara Peninsula Fruit and Vegetable Growers Association, Ontario Tender Fruit Growers, Eastern Ontario Berry Growers, Grape Growers of Ontario, OMAFRA staff and private consultants.
Traps were first deployed last week (one week earlier in Essex Co) in berry and stone fruit blocks. We have placed 4 traps with commercial SWD lures at each site. Use these results in addition to your own monitoring program to determine when SWD is present on your farm. Conduct a salt water test or a plastic baggie test to confirm presence of larvae in fruit.
SWD has been identified in low numbers in traps in Essex, Chatham-Kent, Norfolk and Niagara. Once sustained catch occurs (two weeks in a row with SWD) growers with ripening crops susceptible to SWD should consider using a product with activity against SWD in preharvest sprays. Check the SWD product registrations on our website.
| County | Crop where SWD traps are located (most recent growth stage) | SWD per trap (F=female, M=male) | ||
|---|---|---|---|---|
| Week collected | ||||
| June 18 | June 24 | |||
| Essex | Greenhouse raspberry (End harvest) | 0 | 4F | |
| Field raspberry (1 st ripe berries) | 0 | 0 | ||
| Peach (Pit hardening) | 0 | 0 | ||
| Wild host | 0 | 4F | ||
| Chatham-Kent | Wild host | 0 | 0 | |
| Raspberry (turning colour) | 0 | 2F | ||
| Blueberry (turning colour) | 0 | 0 | ||
| Strawberry (ripe fruit) | 0 | 2F | ||
| Elgin | Strawberry | Not reported | 0 | |
| Strawberry | Not reported | 0 | ||
| Strawberry | Not reported | 0 | ||
| Wild host | Not reported | 0 | ||
| Norfolk | Blueberry | 0 | 0 | |
| Blueberry | 1F | 0 | ||
| Blueberry | 1F | 0 | ||
| Blueberry | 0 | 0 | ||
| Norfolk | Wild raspberry | Not reported | 0 | |
| Cherry | Not reported | 0 | ||
| Cherry | Not reported | 2F | ||
| Cherry | Not reported | 8F | ||
| Niagara (South) | Strawberry | 0 | Not reported | |
| Wild | 0 | 0 | ||
| Strawberry (Green fruit) | 0 | 0 | ||
| Wild | 0 | 0 | ||
| Niagara (West) | Cherry (June drop) | 0 | 0 | |
| Wild | 0 | 0 | ||
| Mulberry (Fruit changing colour) | 0 | 0 | ||
| Raspberry (Green fruit) | 0 | 0 | ||
| Niagara (East) | Cherry (June drop) | 0 | 0 | |
| Currant (Green fruit) | 0 | 0 | ||
| Gooseberry (bloom) | 2F | 0 | ||
| Raspberry (Green fruit) | 0 | 0 | ||
| Durham | Unspecified | Not reported | 0 | |
| Northumberland | Unspecified | Not reported | 0 | |
| Ottawa/Carleton | Not reported | |||
| Niagara | Apricot (Turning colour) | Not reported | 0 | |
| Plum | Not reported | Not reported | ||
| Nectarine (Green fruit) | Not reported | 0 | ||
| Peach (Green fruit) | Not reported | 0 | ||
| Cherry (Green fruit) | Not reported | 0 | ||
| Niagara | Peach (June drop) | Not reported | 0 | |
| Peach (June drop) | Not reported | 0 | ||
| Cherry (June drop) | Not reported | 0 | ||
| Cherry (June drop) | Not reported | 0 | ||
Click SWD update June 24 2019 to access a pdf version of this report.
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