Marianne's Response
Black spots on pear leaves
We have a pear tree that develops black spots on the leaves. The leaves eventually shrivel up and fall off in the middle of summer. If any fruit develop, there are black spots on the pear and eventually they too shrivel up. What is it and how do I get rid of it?
Thanks in advance
Gregory
Posted by gregory warner on March 26, 2015
Marianne's Response
There are two insects that will cause damage to both leaves and fruit. One is the Tarnished Plant Bug and the damage is more of black spots on the leaves and pitting of the fruit. Best control is good fall and spring cleanup so the insect cannot overwinter. The other is the thrip and the damage is leaves that are more discolored and fruit that is scarred rather than pitted. Insecticidal soap will control thrips if used every 3 days for 2 weeks when they are first active. I am not sure which insect is causing your damage but if you look closely or send me a photo of the damage I may be able to make a better diagnosis. Keep growing, Marianne Binetti
