Question
I have a orange tree in a 10" pot purchased beginning of the summer.  I have not repotted since purchased as the gentleman I purchased from had just done so (found on a garage sale).  It thrived this summer on my back porch and about 3 weeks ago was moved back in the house, it has experienced consistent leaf drop and I attributed this to change in environment, specifically a drop in sun.  However, just today I have noticed a few spots of white fuzz on the leaves (resembles a small white catepillar in the crease of the leaf but does not move) and assume it's developed a pest.  I isolated the tree back to the porch, being the only spot I really can and applied a soap incestiside purchased at a chain store.  I'm curious if these are the best measures to take, when I purchased the plant the gentlemen suggested flushing with "Neem Oil" to prevent pests.  Does this sound familiar, where could I find it and should it or something else be used to safeguard my plants?  I'd appreciate any guidance.  

Answer
Hi Meghan,

Little pieces of white fuzz are a good description of mealybugs. I suspect the plant seller may have had some previous mealybug problems and that is why he suggested the preventive treatment.

Neem oil is an effective treatment remedy if applied properly. You would probably have to order it by mail and it may be rather expensive after you add in shipping costs. Do a Google search to find a supplier. If that does not work, I can probably find one for you. BTW, it has a strong odor.

That said, I recommend that you thoroughly spray your orange tree wit a solution of 6 parts water, one part rubbing alcohol, and a squirt of liquid dish soap. The key here is to spray all leaf and stem surfaces until they are dripping wet. Then repeat the treatment again in a week. If you are really thorough, that should solve the problem. If you miss a few places, then the problem may return in a couple of months.

Please let me know if any of this is unclear or if you have any additional questions.

Regards,
Will Creed, Interior Landscaper
Horticultural Help, NYC

You can E-mail me directly at: [email protected]

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