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Pests & Diseases in Pecan Trees
Pests & Diseases in Pecan Trees. As it is with all nut-bearing trees, growers must watch for pests and diseases. There is only one major disease that is common to the pecan tree, but there are numerous pests that infect the trees in a variety of places. This article highlights the six most common pests and diseases that bring harm to the pecan...
As it is with all nut-bearing trees, growers must watch for pests and diseases. There is only one major disease that is common to the pecan tree, but there are numerous pests that infect the trees in a variety of places. This article highlights the six most common pests and diseases that bring harm to the pecan tree.
Pecan Nust Casebearer
Pecan nut casebearers position their larvae in small cocoons at the junction of the bud and stem. As the pecan buds open, the larvae migrate to the nut cluster to bore into the nuts.
Pecan Weevil
Pecan weevils emerge from the ground after a period of heavy rain. They infest the nuts and feed on the premature kernel, causing the kernel to shrivel.
Pecan Phylloxera
Pecan phylloxera is an aphid-like insect that feeds primarily on the foliage of the tree. Severe infestations cause weakened stems and will eventually destroy the entire limb.
Twig Girdlers
Twig girdlers affect young pecan trees. They lay their eggs onto the twigs which cause the twigs to become encircled by the larvae. In time, the infected twigs fall off of the tree.
Yellow Pecan Aphids
Yellow pecan aphids secrete a sticky substance on to the pecan leaves. The leaves soon become black with mold.
Pecan Scab
Pecan scab is a fungus that spreads in warm and wet spring temperatures. Infected trees will experience premature nut drop and a decrease in nut size.
