There are quite a few options to control imported cabbageworm, cabbage looper and diamondback moth in Brassica crops. The following table lists a couple products that have been registered in the past year on different brassica crops including many specialty crops. Remember that it is easier to control smaller larvae and that it is important to alternate between chemical groups. Also, pyrethroid insecticides are more effective in cool conditions. The following are just guidelines so please read the label for directions of use. Always read and follow label directions. Refer to Publication 363 for more control recommendations.
|Rimon 10 EC (novaluron)||15||Broccoli, Chinese broccoli, brussels sprouts, cabbage, Chinese cabbage (napa), Chinese mustard cabbage (gai choy), cauliflower, Cavalo broccolo, and kohlrabiLeafy Brassica Greens –broccoli raab, Chinese Cabbage (bok choy), Collards, Kale, Mizuna, Mustard Greens, Mustard Spinach, and Rape Greens||410-820 ml in 200-400 L water/haNotes: Use higher rate under high insect pressure, or when larvae are large.|
|Concept (imidacloprid + deltamethrin)||4 + 3||Head and stem brassica Crop sub-group 5A: Broccoli, Chinese broccoli, Brussels sprouts, Cabbage, Chinese cabbage (napa), Chinese mustard cabbage, Cauliflower, Cavalo broccolo, Kohlrabi||650 ml/haNotes: It is recommended only to use Concept Liquid Insecticide to control cabbage looper, diamondback moth, imported cabbageworm and crucifer flea beetle when the timing of application coincides with the timing for aphids.|