Plum tree infestatio - Knowledgebase Question

Glen Ellen, Ca
Question by copperwoman2
June 18, 2008
Hello Experts!,

The branches of my Santa Rosa plum tree have these little black/brown


Image
Answer from NGA
June 18, 2008

0

What you are describing are scale insects. They can cause problems if the population gets quite large. The first step in scale control is to apply a dormant oil spray in the spring before growth starts. The dormant oil spray should be followed by an all-purpose fruit tree spray or the insecticide Imidan. Follow label directions - additional sprays may be needed later in the growing season. Since you've missed the window of opportunity for a dormant oil spray this year, you can wait until next winter or early spring and put your plum tree on a regular spray schedule to control the pests.

Best wishes with your tree!

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