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


Use QP Chlorpyrifos 4E at the rates indicated according to the designated geographic area to control the following pests. Use the lower rates for light infestations and increase the dosage for heavier infestations.A petroleum spray oil recommended for use on citrus trees may be added to dilute spray mixtures only at a rate of up to 1.8 gallons per 100 gallons of water to improve control of aphids, mealybugs, scale insects, and thrips. Treat when insects become a problem or in accordance with the local spray schedule recommended by your state extension service specialist.

QP Chlorpyrifos 4E may be applied in tank mixtures with ethion, dicofol, Agri-Mek, or Vendex. See MIXING DIRECTIONS for further instructions. Read and carefully follow all applicable directions, restrictions, and precautions on labeling for the other products used in combination with QP Chlorpyrifos 4E.

PRECAUTIONS: Observe local use directions for tank-mix combinations especially in regard to applications of QP Chlorpyrifos 4E plus spray oil. Consult with a county farm advisor, county agency, extension service personnel, agricultural commissioner, or pest control advisor for such information regarding a given locality.

Do not apply when trees are stressed by drought or high temperatures. QP Chlorpyrifos 4E should not be tank mixed with Difolatan 80 Sprills as crop injury may occur.

QP Chlorpyrifos 4E is highly toxic to bees exposed to direct treatment and should not be applied when bees are actively visiting the area. During the bloom period in California, apply from one hour after sunset until two hours before sunrise.

RESTRICTIONS: Do not make second foliar application within 30 days of the first application. Do not treat within 21 days of harvest for applications up to 7 pints of QP Chlorpyrifos 4E per acre nor within 35 days for application of rates above 7 pints per acre. Do not allow livestock to graze in treated areas. Do not apply more than 8 pints (4 lbs. a.i.) per acre in a single application; 12 pints (6 lbs. a.i.) per acre for red scale only in California).

Spray Volume:

200-700 gals./acre


Do not use less than 1/2 pt. of Quali-Pro Chlorpyrifos 4E per 100 gals. of water in dilute applications.

Pre-Harvest Interval

21 days

Restricted Entry Interval

5 days