Approved Imported Fire Ant (IFA)Treatments for Nursery Stock, Balled or in Containers:

Method B - Drenching

Equipment -

1. A large-capacity bulk mixing tank, either pressurized or gravity flow, for mixing and holding the insecticide solution.
2. Properly equipped hoses and watering nozzles that can be attached to the mixing tank and used to thoroughly saturate the plant balls or containers with the insecticide solution.

For Plants in Containers -

Procedure - Apply either a bifenthrin, chlorpyrifos, or diazinon solution to the point of saturation one time only. The volume of the treating solution must be at least 1/5 the volume of the container.

Insecticides and Dosages -

Insecticide			Dosage
chlorpyrifos (4EC)			4 fl. oz. 4EC per 100 gal. water
chlorpyrifos (2EC)			8 fl. oz. 2EC per 100 gal. water
diazinon (AG-500 or 50 WP) *			1 pint AG-500 or 1 lb 50WP per 100 gal water
bifenthrin (flowable) * *			25 parts per million (p/m) See table below.

Diazinon is registered under FIFRA, sec. 24(c), Special Local Needs, in some States. Check with your State Regulatory official before using.

* *Dose rate for bifenthrin is 25 p/m based on dry weight bulk density of the potting media. Use this link to access information regarding bulk density determinations.

Potting media bulk density* (lb./yd.³)			Oz. Talstar Flowable/100 gal. water
200			2.4
400			4.8
600			7.2
800			9.6
1,000			12.0
1,200			14.4
1,400			16.8

*Use this link to access information regarding bulk density determinations.

Exposure Period - Plants are certifiable immediately upon completion of the treatment.

Certification Periods -

Insecticide			Certification Period
chlorpyrifos			30 days
diazinon			10 days
bifenthrin			180 days

For Balled and Burlapped (B&B) Plants -

Procedures - Apply a chlorpyrifos solution (see table below) as a substitute for plain water to the plants during the routine watering activities after the harvest but prior to shipment. Do not remove burlap from plants prior to treatment. Treat plants singly or in groups with the chlorpyrifos solution to the point of runoff on a twice daily schedule for three consecutive days.

This treatment should be carried out in a well ventilated place normally used to maintain plants prior to shipment. The treatment location should be covered, if possible. The treatment will be enhanced by adding any agricultural wetting agent or surfactant to the chlorpyrifos solution.

Insecticide and Dosages -

Insecticide			Dosage
chlorpyrifos (4EC)			4 fl. oz. 4EC per 100 gal. water
chlorpyrifos (2EC)			8 fl. oz. 2EC per 100 gal. water

Certification Period - 30 days.

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Use this link to view and/or print a listing of MITIGATIVE MEASURES required to minimize the impact of IFA quarantine treatments on the environment and human health.

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