I applied horticultural oil and spinosad to my plants earlier today after noticing some psyllids and a few other pests.

As soon as it dried I noticed some darker green spots on my developing fruit, will this harm them or is this just the oil from my sprayer?



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One question----did you apply the horticultural oil either very early in the morning, or at dusk in the evening. In other words so that the oil was not on the tree during the heat of the day. Did the temperature in your area reach 90F or above during the day that you sprayed? - Millet (602-)

Morning, it was about 85, at its highest, midday.

Possibly could be from the day's heat and the oil spray, but as you applied it in the morning and the temp only reached 85F, I really doubt the temp. had anything to do with it. However, I would be interested to know the trade name of the oil spray you used, because I want to look up the purity and the evaporation time of the oil. Thanks. - Millet (602-)

Ferti lome