• Dry Fertilizers

• Tissue Sampling

• Field Inspections

• Recommendations

• Organic Field Inspections

• IPM Programs

• Herbicides

• Insectides

• Fungicides

• Fertilizers (Dry and Liquid)

• Growth Regulators


At Leffingwell Ag Sales Co. , we offer insecticide injections custom made to meet your needs.

Click Here For More Information


Systemic insecticides injected into the trees water supply, via the irrigation system, work by absorbing into the tree's vascular system and repelling pests from the inside out. You can use this type of insecticide for a wide range of pests, including borers, aphids, leaf miners, whiteflies, thrips, and soft-scale insects. The best time to inject trees with systemic insecticides is in late spring or summer, when the trees are in full leaf. Try to perform the injection when the soil temperatures are at least 45 degrees Fahrenheit and the weather is humid or rainy.