Dow Serves up Insecticides

Fruit and vegetable growers can use Radiant and Delegate broad-spectrum insect control on their crops.

Published on: Oct 10, 2007

The U.S. Environmental Protection Agency granted labels to two new insect control products from Dow AgroSciences containing an innovative, new active ingredient — spinetoram.

Delegate WG is labeled for use in tree fruit, grapes and tree nuts. Radiant SC is labeled for use in vegetables.

Dow described spinetoram as an "excellent broad-spectrum insecticide" labeled under EPA's Reduced Risk Pesticide Initiative. Among the touted benefits of spinetoram is that it maintains most key beneficial insect populations without flaring mites, according to Dow. Dow also points out that spinetoram also is effective at low use rates and is less persistent in the environment compared with older compounds. Dow also notes that apple growers battling resistance issues will be interested in this new mode of action for the control of codling moth, as well as numerous other internal feeding lepidoptera.

"Spinetoram also carries many other favorable features for growers, including class-leading re-entry and preharvest intervals and minimal personal protective equipment requirements, making it a convenient, easy-to-use tool for growers," says Lee Conway, marketing specialist for Dow AgroSciences.

Delegate doesn't coddle moths

Delegate WG is labeled for control of codling moth and a broad spectrum of damaging insect pests in apples, pears, stone fruit, citrus, grapes and tree nuts. Other insects controlled by Delegate WG include Oriental fruit moth, leafrollers, leafminers, thrips, tufted apple bud moth, pear psylla, cherry fruit fly, green fruitworm and peach twig borer. It also suppresses apple maggot, plum curculio and citrus psylla.

"Delegate WG is a new tool for pome fruit growers to control codling moth that fits with Integrated Pest Management programs," Conway says. "Apple producers, in particular, have long been looking for new solutions to control codling moth beyond organophosphates and neonicotinoids."

Delegate WG insecticide provides a short re-entry interval and has a short pre-harvest interval of just one day for citrus; seven days for pome fruits, cherries, plums and prunes; and 14 days for peaches and apricots.

Vegetable growers can be Radiant

  • Radiant SC is labeled for control of worms, thrips, leafminers and in fruiting and leafy vegetables, cole crops, cucurbits and other vegetable crops.
  • Radiant SC controls a wide variety of vegetable pests, including loopers, armyworms, thrips, leafminers and diamondback moth.
  • Radiant SC insecticide also offers a short re-entry interval, as well as short pre-harvest intervals and minimal personal protective equipment requirements.

Rotate modes of action

Dow AgroSciences recommends that Radiant SC and Delegate WG be used in rotation with Intrepid 2F insecticide when targeting worm pests.

"Rotation of insecticides is strongly encouraged to maintain the long-term effectiveness of these valuable tools and manage against resistance," according to a news release from Dow.

To learn more about Dow's new insecticides, visit and