This post contains a summary of trap counts for July 11-17, 2019.  The numbers reported are number of Spotted Wing Drosophila (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 in early June 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.  We have done this in cherry samples from Niagara and found no SWD larvae to date.

SWD has been identified in  all monitored regions.  In addition, they have been identified in Wellington, Hamilton-Wentworth and Halton on yellow sticky cards.  This means that growers with ripening crops susceptible to SWD in these counties should consider using a product with activity against SWD in preharvest sprays.  Check the SWD product registrations on our website.

F = female; M = male;

CountyCropNumber of SWD per trap
June 27-July 2July 3-11July 11-17
EssexGH raspberry00RETIRED
Field raspberry3F2F, 2M40F, 5M
Peach4F1F, 1M38F, 10M
Wild4F5F, 0MRETIRED
Plumnot reportednot reported30F, 16M
KentWild Host4F5F, 0Mnot recorded
Raspberry14F, 1M51F, 8M3F
Blueberry003F, 1M
Strawberry08F, 3M16F, 5M
ElginStrawberry0not reportedRETIRED
Strawberry1F1FRETIRED
Strawberry0not reportedRETIRED
Wild raspberry01F, 4M21F, 19M
Strawberrynot reportednot reported20F, 1M
NorfolkWild raspberry4F3F7F, 7M
Blueberry02F23F, 4M
Blueberry03F, 1M4F, 3M
Blueberry009F
NorfolkWild raspberry8F6F,3M12F, 3M
Cherry3F, 2M12F, 2M33F, 1M
Cherry8F11F6F, 1M
Cherry4F9F11F, 2M
NiagaraStrawberry001M
Wild02F, 6M5F, 10M
Strawberry000
Wild005F, 1M
NiagaraCherry03M, 3F33F, 1M
Wild2F, 1M017F, 7M
Mulberry5F4F, 1M19F, 1M
Raspberry01F, 1M59F, 16M
NiagaraCherry02F, 1M3F, 1M
Currant002F
Blackberry003F
Raspberry003F
Niagaraapricot001F
plum2F, 2M1F 2F, 2M
nectarine001F
peach000
Cherry 002F, 1M
NiagaraPeach000
Peach003F
Cherry 01F1F
Cherry 01F2F
NiagaraRaspberrynot reportednot reported3F
Cherrynot reportednot reported9F
Cherrynot reportednot reported3F
Raspberrynot reportednot reported0
Durhamwild000
Blueberry001F
Blueberry001F
Blueberry000
Northumberlandwild008F, M1
Raspberry01F8F
Raspberry001F
Strawberry003F, 1M
OttawaStrawberry000
Strawberry000
Strawberry001F
Wild001M

This project was funded in part through the Canadian Agricultural Partnership (the Partnership), a federal-provincial-territorial initiative. The Agricultural Adaptation Council assists in the delivery of the Partnership in Ontario. The Agricultural Adaptation Council assists in the delivery of the Partnership in Ontario.

 

 

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