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Aphid Home

NEW - Biological Control

Speed Scouting

Scouting Q & A

Scouting & Surveys

What is Soybean Aphid?

Life Cycle & Biology

Population Dynamics

Distribution

Management Options

Insecticides

Insecticide research

SAGE-Growth Estimator

USDA RAMP

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Management of Soybean Aphid

Management Options for Soybean Aphid

• Crop Rotation?
• Soil Fertility?
• Tillage?
• Plant Spacing?
• Varieties?
• Herbicides?
  Biological Control?
• Insecticide?
• What’s in the IPM toolbox?

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Insecticides Labeled for Soybean Aphid

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Insecticide Concerns

• Scouting requirements
• Lack of thresholds
• Resistance
• Natural Enemies
• Honey Bees
• Misapplication

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Soybean Aphids are Parthenogenic:

Click for larger image

All offspring are female, born pregnant, give live birth Birth rate: 3-8/day for 30 days Generation time 7-10 days, double in 2-3 days Management implications Resurgence (moderate kill) Before spraying 1000 aphids Day 1 150 Day 3 300 Day 5 600 Day 7 1200 Resistance (high kill)

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Insecticides Against Soybean Aphid B. Potter - New Ulm

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Insecticides Against Soybean Aphid, Noetzel, Holen, Holder & Holen – Fergus Falls

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Soybean Aphid Insecticides: Aerial vs. Ground Application, Broderius Farm – Hector, MN

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Soybean Aphid Insecticides: Aerial vs. Ground, Holen, Holen, Holder & Noetzel – Fergus Falls, Warrior applied at 3 oz/A in 12 gpa ground and 5 gpa air on July 30.

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URL: http://www.soybeans.umn.edu/crop/insects/aphid/aphid_management.htm

Last Modified 3/25/11 2:27 PM
efans@umn.edu

 

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