Penn Jersey Field Crop Alerts

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PENN JERSEY EXTENSION PARTNERSHIP

Field Crop Alert

Armyworm

Have you seen this pest?

Description: Highly variable in color. Adults have broken, white stripe down center of back and dark stripes down the side.

Damage: Most frequently occurs in no-till fields that were sod the previous year. Larvae feeds on corn leaves from mid May to mid June. They can shred leaves and defoliate plants.

Threshold for responsive treatment: 25% of plants damaged.

	Control Lorsban 4E - 1-2 pt. Asana XL - 5.8-9.6 oz. Warrior 1EC - 2.6-3.84 oz. Penncap-M - 2-3 pt. Ambush 2EC - 6.4-12.8 oz. Pounce 3.2EC - 4-8 oz.

Before using any pesticide, always read the label. Use pesticides only at the recommended time and rates. Where trade names are used, no discrimination or endorsement is implied. For a complete list of pesticides, check the current Agronomy Guide.

Distributed in cooperation with the U.S. Department of Agriculture in furtherance of the Acts of Congress of May 8 and June 30, 1914. Cooperative Extension work in agriculture, home economics, and 4-H. Zane R. Helsel, Director of Extension. Rutgers Cooperative Extension provides information and educational services to all people without regard to sex, race, color, national origin, disability or handicap, or age. Rutgers Cooperative Extension is an Equal Opportunity Employer. This publication is available in alternative media on request. Penn State is committed to affirmative action, equal opportunity, and the diversity of its workforce. U.Ed. AGR99-73 5M199PS23688

Related Links:

• Crop Master - ICM

• PSU Publications

• PSU Outreach Magazine
• Pesticides