This is my first year growing brugmansias and I read here somewhere that I should use neem oil for mites and aphids. I bought the concentrated bottle and have about 1/2 gallon left over. Can anyone tell me whether it goes "off" and should I just make a fresh batch each time? Just trying to be frugal :)
Neem oil concentrate
This thread has 8 replies. This forum is accessible only to subscribing members of Dave's Garden. There are many free features here, and about half of our forums are completely open to all members. And learn more about Dave's Garden, and explore the benefits of becoming a subscribing member.