Woolly apple aphid colonies can be found near old pruning cuts.
Fruit
Larvae of walnut husk fly do not damage the kernel, but make husk removal difficult.
Peach twig borer damage to apricot.
After the first generation of codling moth, inspect fruit for damage. Larvae may enter at the calyx end.
Manage pearleaf blister mite with an oil or carbaryl spray in late summer.
Appleleaf blister mite damage looks serious, but is usually confined to the leaves.
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Black hunter thrips
Banded-wing thrips.
Six-spottted thrips. Image courtesy of UC Davis IPM Program.
Rose stem girdler larvae can only be seen by slicing a suspect can lengthwise.
Rose stem girdler adults are small metallic beetles.
Greater peachtree borer larvae feed on the wood at the base of the tree and on roots.
Secondary blooms are common on pear, and are at risk of being infected by fire blight.