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Apple sawfly

Symptoms

The larvae of the sawfly damage the apples, either causing fruitlets to fall in June, or those that are left on the tree gradually become ribbon-scarred and are sometimes misshapen.

Find it on: apples
Time to act: early to late-summer

Overview

When apple trees are in flower, the sawfly, Hoplocampa testudinea, lays its eggs in the developing fruit. In June, the larvae tunnel their way under the skin of the fruit and into the core, causing the apples to fall. When they're ready, they tunnel out of the apples, creating a second hole, and then bury themselves in the soil to pupate. Sometimes the larvae die and don't make it to the middle of the apple, in which case the apples mature, but they'll have ribbon scars and are sometimes misshapen.


Solution

The larvae of the sawfly damage the apples, either causing fruitlets to fall in June, or those that are left on the tree gradually become ribbon-scarred and are sometimes misshapen.

Organic

Closely examine young fruits on the tree or on the ground, and destroy any that show signs of entrance holes. This stops the larvae from escaping into the soil and pupating. Rake the soil around affected trees in winter, so the exposed sawflies are killed by frost.




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Talkback: Apple sawfly
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shahwon 24/11/2011 at 15:29

I am an organic gardener, treating plants with Herbs & Spices

Solution, just cut fresh ginger in small slices and place 5/6 inches
deep in the soil, 4/5 feet away from the tree, keep moist
Even pest in the seed core will vanish