Mary-Frances B asked:


We have 14 fruit trees and this year we have sprayed with organic spray. One pear tree (maybe 8 years old) has black leaves and we seem unable to stop the spread. Do we need to go to stronger?

SHERISE

Elvis P asked:


What is the final dominant organic product formed from the sequence of toluene reacting with Cl2 and ferric chloride; and, that major product reacting with acetic anhydride and AlCl3 in CS2?

YAMIN