General Information


Quali-Pro Chlorpyrifos 4E insecticide forms an emulsion when diluted with water and is suitable for use in all conventional spray equipment. Consult your State Experiment Station or State Extension Service for proper timing of applications.

When an adjuvant is to be used with this product, Makhteshim Agan of North America, Inc. suggests the use of a Chemical Producers and Distributors Association certified adjuvant.


Do not formulate this product into other end use products. Attention: Do not cut or weld container.

Limitations, Restrictions, and Exceptions


Mix the specified dosage in enough water to ensure thorough coverage and apply no less than 5 gallons of spray per acre when using aerial equipment or no less than 15 gallons of spray per acre when using ground equipment. For weevil control, apply once at flower bud development (late May, early June) and, if weevils are present, once after 100% bloom (early to mid-July). For other insects, treat when field counts indicate damaging insect populations are developing or present. Apply only after the winter flood has been removed. To avoid pesticide contamination of flood water, make no applications while bogs are flooded.

Quali-Pro Chlorpyrifos 4E may also be applied through sprinkler irrigation systems to control the above-listed pests. For best results, use the listed rate of Quali-Pro Chlorpyrifos 4E per acre. Maintain vigorous tank agitation to assure uniformity of the application throughout the injection period. See SPRINKLER IRRIGATION section for further information.


Do not make a second application within 10 days of the first application.

Pre-Harvest Interval

60 days

Restricted Entry Interval

24 hours