Can grapefruit and lemon trees be sprayed with “year round spray oil .”
Can grapefruit and lemon treese be sprayed for pests with fruit on the tree? Whatever pest is on the trees makes the leaves turn brown and curl with a scale-like look to it. Both have young fruit on the tree. Will this spray oil by SUMMIT hurt the fruit?
Certified GKH Gardening Expert
Horticultural sprays are normally safe for the plants and the fruit. Another option you might want to consider is neem oil. It is very effective against a variety of pests and is also a fungicide. Neem oil is perfectly safe to use as well. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm