If you find any, the first thing to try is just washing.
Mar 22, Trees should be inspected weekly from petal fall until the terminals harden off. For nectarines the treatment threshold is one colony per tree, and for peaches the threshold is five or more colonies per tree. Large trees can tolerate higher levels of infestation. Currently available insecticides provide excellent control of green peach stumpdelimbing.barted Reading Time: 2 mins. Aug 01, STEP 1: Removal Hose them down.
If you spot a few aphids on your plants, the minor infestation can be successfully banished with a Spray leaves with DIY insecticidal soap.
Waging war with larger numbers of aphids?
Reapplication may be necessary after heavy rain.
Make a homemade insecticidal soap, a Use a systemic pesticide. If your aphid Estimated Reading Time: 4 mins. “Horticultural oil is extremely effective in controlling aphids, but only if you thoroughly treat the tree” said Lou Meyer of Davey’s Annapolis, Maryland, office. “Apply the oil in the dormant season to kill any overwintering eggs. If needed, you can also use a lower rate of the oil. Oct 09, Alternatively you can mix two teaspoons of dish soap into a pit of lukewarm water and spray the infected plants with it.
Soap suffocates aphids by clogging the pores they breathe through. If you don’t fancy using dish soap you can also buy special insecticidal soap. How to Kill Aphids on Trees.
Hose Down the Trees with Water. If you see aphids on your trees, hose them down immediately. A stream of water is usually all it takes to banish a Spray Insecticidal Soap.
Repel Pests with Organic Neem Oil. Spread Diatomaceous Earth in the Soil. Apply a Reflective Estimated Reading Time: 7 mins.