Green Cloverworm

How to Identify Green Cloverworm

The larvae of green cloverworm are easily recognizable by their pale green color and distinctive white stripes that run along their bodies. They also possess three pairs of prolegs near their rear end, which sets them apart from other similar pests.

As the larvae mature, they undergo several molts, gradually increasing in size and developing more defined markings. Once they reach adulthood, green cloverworm moths emerge with a wingspan of about one inch. These adult moths are characterized by their brownish-gray coloration, which allows them to camouflage well in their surroundings.

(Image Credit: Image by Daren Mueller, Iowa State University, Bugwood.org)

How to Scout for Green Cloverworm

Farmers should closely monitor crops, particularly the upper canopy, for signs of defoliation, skeletonized leaves, and irregular-shaped leaf holes. Larvae or adult moths may also be noticeable, which are both strong indicators of green cloverworm infestation.

(Image Credit: Phil Sloderbeck, Kansas State University, Bugwood.org)

How to Chemically Manage Green Cloverworm

While pheromone or light traps can sometimes be options to address early stage cloverworm presence, many infestation scenarios require chemical control to effectively manage green cloverworms. When deciding whether to employ chemical products to control armyworms, farmers should first assess the severity of the infestation and determine the economic threshold for treatment. After deciding to move forward with a chemical treatment, there are a few insecticide options available.

In most years, planting on time and natural controls will keep green cloverworm populations in soybeans at bay. In the few cases where economic populations arise, foliar insecticides can control the pest.

Asana® XL**: Apply 2.9 - 5.8 fl oz/A GCS
Bifenthrin 2EC**: Apply 2.1 - 6.4 fl oz/A
Willowood Lambda-Cy 1EC: Apply 1.92-3.20 fl oz/A

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