Updated July 14, 2009 by Robert Wright
Economic Thresholds:
| Grasshopper Population (Hoppers/Square Yard) |
Field | Field Margin |
Treatment necessary? |
|---|---|---|---|
| Non-economic | 0-2 | 5-10 | No |
| Light | 3-7 | 11-20 | Questionable, depends on size, species, type of crop |
| Moderate | 8-14 | 20-40 | Probably |
| Abundant | 15 or more | 41 or more | Yes |
For more information, see NebFact 328, A Guide to Grasshopper Control in Cropland.
This list is not inclusive. See http://www.greenbook.net
or other resources for additional registrations.
This information is presented in abbreviated form. Be sure to consult the
label for additional information and restrictions.
| IRAC Mode of Action Classification: | ||||
|
||||
| Mode of Action |
Product Name |
Common Name |
Rate (Formulation/Acre) |
Restrictions/Comments |
|---|---|---|---|---|
| 3 R | Asana XL |
esfenvalerate |
5.8-9.6 oz |
Lower rates may be used for smaller grasshoppers.
Higher rates may be necessary to control large populations, or mature
grasshoppers. |
| 3 R | Baythroid 2 | cyfluthrin | 2.1-2.8 fl oz/acre | PHI 21 days for grain or fodder. REI 12 hrs. |
| 3 R | Capture 2EC |
bifenthrin |
2.1-6.4 fl oz per acre |
|
| 1B | Dimethoate 2.67EC |
dimethoate |
1.0-1.5 pint per acre |
|
| 1B R | Lorsban 4 E |
chlorpyrifos |
½-1 pint |
|
| 3 R | Mustang Max |
zeta-cypermethrin |
2.72-4.0 oz product/acre |
Apply in a minimum of 2 gallons/acre by air and 10
gallons/acre by ground. |
| 1B | Nufos 4E |
chlorpyrifos |
0.5-1.0 pint per acre |
|
| 1B R | Penncap-M |
methyl parathion |
2-3 pints |
Do not apply Penncap-M during pollen-shed if bees
are foraging in the areas to be treated. |
| 3 R | Proaxis | gamma- cyhalothrin |
2.56-3.84 fl oz/acre | When applying by air, apply in a minimum of 2 gallons of water/acre. |
| 1A | Sevin 4F |
carbaryl |
1-2 quart per acre |
|
| 1A | Sevin XLR Plus |
carbaryl |
1-3 pints |
|
| 3 R | Warrior 1 CS |
cyhalothrin |
2.56-3.84 fl oz product/acre |
When applying by air, apply in a minimum of 2 gallons
of water/acre. |
| 3 R | Warrior 1 EC |
lambda- cyhalothrin |
2.56-3.84 oz |
|
