Spotted Wing Drosophila (SWD) - Suggested Insecticides
Good morning, everyone,
As temperatures begin to cool, the risk of Spotted Wing
Drosophila (SWD) infestations in your fields increases.
Below is a summary of some insecticide products, with a short PHI, listed in our
guides that are specifically recommended for SWD control. When reviewing
product labels, you may notice differences in label format among manufacturers, including
application rates, pre-harvest intervals (PHIs), and other recommendations.
This sometimes make it difficult to identify the information that applies
specifically to SWD management.
For example, the same crop may have different rates or PHIs
listed depending on the target pest. Always consult and follow the product
label for:
- Application rates
- Pre-harvest intervals (PHIs).
- Re-entry intervals (REIs).
- Crop-specific recommendations.
- Tank-mix compatibility
- Spray volume requirements.
- Surfactant recommendations.
Remember always to rotate between products to avoid resistance and if you have any questions or are unsure about any
recommendation do not hesitate to reach out.
Thank you,
|
|
Strawberry |
Highbush-Blueberry |
Raspberry |
Blackberry |
||||
|
Product |
PHI |
# Applic. |
PHI |
# Applic. |
PHI |
# Applic. |
PHI |
# Applic. |
|
Malathion 85 E |
3 |
2 |
2 |
3 |
1 |
2 |
1 |
2 |
|
Entrust/Success |
1 |
3 |
1 |
3 |
1 |
3 |
1 |
3 |
|
Up-Cyde |
2 |
3 |
2 |
2 |
2 |
3 |
2 |
3 |
|
Delegate |
1 |
3 |
1 |
3 |
1 |
3 |
1 |
3 |
|
Exirel |
1 |
4 |
3 |
4 |
1 |
4 |
1 |
4 |
|
Harvanta |
1 |
3 |
1 |
3 |
1 |
3 |
1 |
3 |
PHI:
Pre-harvest Interval; Applications/season.
SWD males
(left) have dark spots at the tip of each wing. Females (right) lack these spots
but have a serrated egg-laying structure (see insert). Credit: University of Wisconsin-Madison.
Div. of Extension.