Group 4A insecticide
Mode of Action
The active ingredient in Actara 240SC is thiamethoxam. Thiamethoxam is a second-generation neonicotinoid. In rigorous third-party trials, thiamethoxam went head-to-head with its leading competitor, imidacloprid, and offered greater protection to new growth because of its faster uptake and longer residual.
Thiamethoxam interferes with a unique receptor site in the insect’s nervous system, the nicotinic acetylcholine receptor. It has both contact and ingestion activity. Insect feeding will stop within hours of contact or ingestion and insect death occurs within 24 – 48 hours.
DO NOT apply any subsequent application of a Group 4 Insecticide following treatment with a seed treatment or soil application of Actara 240SC.
For resistance management, please note that Actara 240SC contains a Group 4 insecticide (neonicotinoid class of chemistry). Any insect population may contain individuals naturally resistant to Actara 240SC and other Group 4 insecticides. The resistant individuals may dominate the insect population if this group of insecticides is used repeatedly in the same field. Other resistance mechanisms that are not linked to site of action but are specific for individual chemicals, such as enhanced metabolism, may also exist. Because resistance development cannot be predicted, the use of this product should conform to sound resistance management strategies established for the crop and use area.
To delay insecticide resistance:
Where possible, rotate the use of Actara 240SC or other Group 4 insecticides with different groups that control the same pests in a field. Use tank mixtures with insecticides from a different group when such use is permitted.
Insecticide use should be based on an IPM program that includes scouting, record keeping, and considers cultural, biological and other chemical control practices.
Monitor treated pest populations for resistance development.
Contact your local extension specialist or certified crop advisors for any additional pesticide resistance-management and/or IPM recommendations for the specific site and pest problems in your area.
For further information or to report suspected resistance, contact company representatives at 1-87-SYNGENTA (1-877-964-3682).