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White stuff on pine trees #338986

Asked July 03, 2016, 12:39 PM EDT

Hi,
 What is this white stuff on my pine trees? Are they eggs?

I have Sevin, Onslaught, and bugs be gone pesticides.   Which one should I use? When should I spray? Should I spray weekly and alternate?

Can I just apply imidacloprid soil drench? 

Worcester County Massachusetts

Expert Response

Hi,

It looks like some kind of pine scale. My knowledge of pesticides is limited so you might want to call the UConn Home & Garden Education Center<personal data hidden> on Tuesday and talk to one of the horticulturists who are better educated about pesticides and would be willing to suggest control measures.

An Ask Extension Expert Replied July 03, 2016, 10:02 PM EDT

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