There Are White/Grey Spots on the Trunk of My Pussy willow Bush
These white/grey spots are also now on my cherry tree and appear like dust all over near by sweet peas. What can I do to get rid of this?
This link will take you to several articles on powdery mildew. PW is pictured in the first article, and you should find answers and recommendations in this or subsequent articles: http://www.google.com/cse?cx=012078378210706707791%3Af1h5n_k1r5e&ie=UTF-8&q=powdery+mildew&oq=powdery+mildew&gs_l=partner.3..0l10.185349.191243.0.192184.108.40.206.220.127.116.117.568.0j2j0j1.3.0.gsnos%2Cn%3D18.104.22.168.5952j2868304j14..1ac.1.lw0SNvcSmaI#gsc.tab=0&gsc.q=powdery%20mildew&gsc.page=1