Soil moisture is important for effectiveness. Drip-applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard is at or near field capacity. Follow label instructions carefully.
For grape mealybug, there is suspected resistance to insecticides with an an MOA of 4A. Use a different IRAC group if control efficacy is reduced, or if you have routinely relied on insecticides with an MOA of 4A in the past.
Effect on Beneficials:
Unknown
Material Type:
Insecticide
Chemical Classification:
Neonicotinyl
Signal Word:
Caution
Formulation:
Spray Powder
EPA Number:
100-1291
Label:
View Label PDF
Usage for thiamethoxam on Grapes
Max Application per Season: 4.01fl oz
Dormant to Wooly Bud
| Target | Rate of application | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Japanese Beetle | 2.67-4.01 oz | 12 | 50 | 4A | LARVAE SOIL TREATMENT - Kills larvae (grubs) on contact or when beetles feed on roots. Control may be achieved through soil-applied products or seed treatments. Application timing and methods vary by product and must follow the label. Chemigate into soil in the spring from March to May to control overwintering larvae. Preventative larvicides can be applied to control next year's population before adult beetles lay eggs in late July & August, but efficacy is less. Chemigation through drip irrigation should only be done with systemic insecticides. |
Wooly Bud to Budbreak
| Target | Rate of application | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Japanese Beetle | 2.67-4.01 oz | 12 | 50 | 4A | LARVAE SOIL TREATMENT - Kills larvae (grubs) on contact or when beetles feed on roots. Control may be achieved through soil-applied products or seed treatments. Application timing and methods vary by product and must follow the label. Chemigate into soil in the spring from March to May to control overwintering larvae. Preventative larvicides can be applied to control next year's population before adult beetles lay eggs in late July & August, but efficacy is less. Chemigation through drip irrigation should only be done with systemic insecticides. |
Budbreak to Prebloom
| Target | Rate of application | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Grape Mealybug | 2.68-4.01 oz | 12 | 50 | 4A | Rates are for soil application. Soil moisture is important for effectiveness. Drip applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard soil is at or near field capacity. For grape mealybug, there is suspected resistance to insecticides with an an MOA of 4A. Use a different IRAC group if control efficacy is reduced, or if you have routinely relied on insecticides with an MOA of 4A in the past. | |
| Japanese Beetle | 2.67-4.01 oz | 12 | 50 | 4A | LARVAE SOIL TREATMENT - Kills larvae (grubs) on contact or when beetles feed on roots. Control may be achieved through soil-applied products or seed treatments. Application timing and methods vary by product and must follow the label. Chemigate into soil in the spring from March to May to control overwintering larvae. Preventative larvicides can be applied to control next year's population before adult beetles lay eggs in late July & August, but efficacy is less. Chemigation through drip irrigation should only be done with systemic insecticides. | |
| Leafhoppers | 2.67-4.01 oz | 12 | 50 | 4A | Rates are for soil application. Soil moisture is important for effectiveness. Drip applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard soil is at or near field capacity. | |
| Phylloxera | 2.67-4.01 oz | 12 | 50 | 4A | Rate is for soil application. Multiple applications over several years reduces, not eliminates, phylloxera populations. Soil moisture is important for effectiveness. Drip applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard soil is at or near field capacity. |
Bloom to Pea Size Fruit
| Target | Rate of application | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Grape Mealybug | 2.68-4.01 oz | 12 | 50 | 4A | Rates are for soil application. Soil moisture is important for effectiveness. Drip applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard soil is at or near field capacity. For grape mealybug, there is suspected resistance to insecticides with an an MOA of 4A. Use a different IRAC group if control efficacy is reduced, or if you have routinely relied on insecticides with an MOA of 4A in the past. | |
| Leafhoppers | 2.67-4.01 oz | 12 | 50 | 4A | Rates are for soil application. Soil moisture is important for effectiveness. Drip applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard soil is at or near field capacity. | |
| Phylloxera | 2.67-4.01 oz | 12 | 50 | 4A | Rate is for soil application. Multiple applications over several years reduces, not eliminates, phylloxera populations. Soil moisture is important for effectiveness. Drip applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard soil is at or near field capacity. |
Pea Size Fruit to Véraison
| Target | Rate of application | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Phylloxera | 2.67-4.01 oz | 12 | 50 | 4A | Rate is for soil application. Multiple applications over several years reduces, not eliminates, phylloxera populations. Soil moisture is important for effectiveness. Drip applied applications should not be used when vines are also under water stress (regulated deficit irrigation) as the product will not be taken up by the plant. Chemigate when vineyard soil is at or near field capacity. |
Post Harvest to Dormant
| Target | Rate of application | REI | PHI | MOA | Eff. | Notes |
|---|---|---|---|---|---|---|
| Japanese Beetle | 2.67-4.01 oz | 12 | 50 | 4A | LARVAE SOIL TREATMENT - Kills larvae (grubs) on contact or when beetles feed on roots. Control may be achieved through soil-applied products or seed treatments. Application timing and methods vary by product and must follow the label. Chemigate into soil in the spring from March to May to control overwintering larvae. Preventative larvicides can be applied to control next year's population before adult beetles lay eggs in late July & August, but efficacy is less. Chemigation through drip irrigation should only be done with systemic insecticides. |