Blog Post

Control Diamondback Moth Population to Protect Brassica Crops

This agronomic image shows a diamondback moth caterpillar.

Diamondback moth caterpillar

When left unchecked, diamondback moth infestations can cause severe stunting in brassica crops. Per the University of California extension, diamondback moths can damage the crowns or growing points of young plants, stunting growth and resulting in financial loss for growers. Diamondback moth populations tend to increase in the spring and early summer, so now is the time to consider management options.

Insecticides are an effective way to manage diamondback moths. During the seedling stage, start checking crops for larvae, checking again at the thinning and heading stages. If larvae or moths are spotted, be sure to check adjacent border rows as infestations can spread from field to field via the adult moths. Once infestation is confirmed, apply insecticide as directed.

To protect brassica crops, Syngenta recommends Besiege® insecticide, a broad-spectrum foliar insecticide providing fast knockdown and long-lasting residual control of diamondback moth, cabbage looper, and other key pests.

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