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Department of Entomology

Insecticide Treatment Options for Leaf Miners in Sugarbeets

Updated March 12, 2003 by Gary Hein and John Thomas


Economic Threshold:
Leafminers attack sugarbeets early in the season when leaf area is limited; however, the leaf area of the mines is seldom great enough to warrant treatment (25% defoliation).

This list is not inclusive. See http://www.greenbook.net or other resources for additional registrations.
This information is presented in abbreviated form. Be sure to consult the label for additional information and restrictions.


IRAC Mode of Action Classification:
  • Group 1 = Acetylcholine esterase inhibitors; 1A = Carbamates, 1B = Organophosphates
  • Group 5 = Nicotinic acetylcholine receptor agonists (allosteric), Spinosyns
R = Restricted-Use Product * = Suitable for chemigation ai = active ingredient REI = Re-Entry Interval
PHI = Pre harvest interval


Mode of
Action
Product
Name
Common
Name
Rate
Formulation/Acre
(unless otherwise noted)
Restrictions/Comments

5 R Entrust spinosad 1.5 - 3 oz PHI 3 days; REI 4 hrs.
1B R Lorsban 4E* chlorpyrifos 1 pt PHI 30 days; REI 24 hrs.
5 R SpinTor 2SC,
Success
spinosad 4.5 - 6 oz PHI 3 days; REI 4 hrs.
1A R Temik 15G aldicarb 9.5 - 14.5 oz/1000 row ft Apply at planting or post-emergence. Potential for groundwater contamination. See label for environmental precautions and restrictions. PHI 90 days; REI 48 hrs.
1B R Thimet 20G,
Phorate 20G
phorate 4.5 oz/1000 row ft At planting. PHI 30 days; REI 72 hrs.