Sorghum Insecticide Use Instructions

Insecticide

Special Instructions

Beta-cyfluthrin* (Baythroid XL)

Minimum application volume (water) is 2 gallons for aerial application and 10 gallons by ground. REI is 12 hours. PHI is 14 days.

Carbaryl (Sevin)

Do not use within 14 days of harvest or grazing for forage use. PHI is 21 days. REI is 12 hours.

Chlorpyrifos* (numerous products including Chlorpyrifos, Eraser, Govern, Lorsban, Nufos, Pilot, Warhawk, Whirlwind, and Yuma)

The treated crop is not to be used for forage, fodder, hay or silage within 30 days after application of 0.5 lb. a.i./acre, or within 60 days at rates above 0.5 lb./acre. Do not apply to drought-stressed sorghum within three days after irrigation or rain. Do not treat sweet varieties of sorghum. Do not apply more than 1.5 lb. a.i./acre per season. REI is 24 hours.

Chlorpyrifos plus gamma-cyhalothrin* (Cobalt)

Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 24 hours unless PPE required for early entry is worn. To minimize the potential for chemical injury, do not apply Cobalt to drought stressed grain sorghum within 3 days following irrigation or rain except where the product is applied in irrigation water. Do not harvest for grain, forage, fodder, hay, or silage within 30 days after application of 26 fl oz of Cobalt per acre or within 60 days after application of rates above 26 fl oz per acre. Do not apply more than 77 fl oz of Cobalt per acre per season. Do not make more than 3 applications of Cobalt or other products containing chlorpyrifos per use season. Do not make a second application of Cobalt or other product containing chlorpyrifos within 10 days of the first application.

Chlorpyrifos plus zeta-cypermethrin (Stallion) REI is 24 hrs. PHI is30 days for grain or stover, 45 days for forage.

Deltamethrin* (Delta Gold)

Minimum application volume (water) is 2 gallons for aerial application and 5 gallons by ground. REI is 12 hours. PHI is 14 days. Do not cut or graze sorghum forage within 14 days of application.

Dimethoate (Dimetohate or Dimate)

Minimum application volume (water) is 2 gallons for aerial application and 5 gallons by ground. REI is 12 hours. PHI is 14 days. Do not cut or graze sorghum forage within 14 days of application. Do not apply after heading. Up to three applications permitted.

Esfenvalerate*(Asana XL 0.66 EC)

Apply by ground or air equipment. Do not exceed 0.15 lb. a.i./acre per season. PHI is 21 days. This use pattern may not appear on the federal label. See Supplemental Labeling EPA Reg. No. 352-515 issued in 1998. REI is 24 hours.

Gamma-cyhalothrin* (Proaxis)

Apply with ground or air equipment, using sufficient water and application methods to obtain full coverage of foliage. When applying by air, apply in a minimum of 2 gallons of water per acre. Do not apply more than 0.03 lb. a.i. (0.48 pint) per acre per season after crop emergence and do not apply more than 0.01 lb. a.i. (0.16 pint) per acre once crop is in soft dough stage. PHI is 30 days. REI is 24 hr.

Lambda-cyhalothrin* (numerous products including Warrior II with Zeon Technology, Silencer, Taiga Z, and Lambda T)

Apply by ground or air in sufficient gallonage to obtain full coverage. Use a minimum of 2 gallons of water per acre by air. Do not apply more than 0.02 lb. a.i./acre once crop is in the soft dough stage. Do not graze livestock in treated areas or harvest for fodder, silage or hay. PHI is 30 days. REI is 24 hours.

Malathion

This organophosphate insecticide is available from several suppliers and in various formulations, but only some labels list sorghum as an application site. REI is 12 hours. PHI 7 days. Read labels closely.

Methidathion* (Supracide 2E)

May cause phytotoxicity on some sorghum hybrids. PHI is 30 days. REI is 48 hours. Use for greenbug based on SLN label.

Methomyl* (Lannate)

Apply in a minimum of 10 gallons per acre by ground or 2 gallons by air. PHI is 14 days for grain or grazing. REI is 48 hours.

Spinosad (Tracer)

Apply in 2 to 5 gallons of water per acre by air or in a minimum of 5 gallons by ground. Time application to coincide with peak egg hatch. Do not apply more than 14.4 fl. oz./acre per year. PHI 7 days for grain or fodder or within 14 days for forage. REI is 4 hours.

Zeta-cypermethrin* (Mustang MAX EC)

Apply in a minimum of 10 gallons of water by ground or 2 gallons by air. Do not make applications less than 10 days apart. Do not apply more than 0.125 lb. a.i./acre per season. PHI is 14 days for grain and stover, and 45 days for forage. REI is 12 hours.

* Restricted Use Pesticide

From: MF-742, J.P. Michaud, R. Jeff Whitworth and Phillip E. Sloderbeck, Sorghum Insect Management, Kansas State University.

This publication was prepared to help producers manage insect populations with the best available methods proven practical under Kansas conditions. Pesticide label directions and restrictions are subject to change, and some may have changed since this publication was written. Kansas State University entomologists assume no responsibility for product performance, personal injury, property damage, or other types of loss resulting from the handling or use of the pesticides listed. Remember, it is illegal to use a pesticide in a manner that is inconsistent with the label. The user bears responsibility for correct use. Always read and follow label directions carefully.