Be sure to spray lower surfaces of leaves and repeat as needed.
Do not use on roses: Ornamental Spray, WSP, mites, scale insects, thrips, with open flowers. PT TR: whiteflies: Orthene Systemic Insect: aphids, armyworm, grass-Control: hoppers, leafhoppers, mealybugs, scale insects (crawlers), spider: mites (twospotted), thrips, whiteflies: azadirachtin: Azatin XL, Turplex: aphids, fungus gnats, thrips, BioInsecticide: whiteflies.
Feb 25, A homemade rose bush spray can take down pests that have set up colonies along the tender leaves and buds. Pests left unchecked can decimate an otherwise healthy rose bush (Rosa spp.), causing blooms to shrivel or buds to drop.
When applied correctly, a homemade rose bush spray can safely exterminate the creepy critters, as well as staunch diseases, without causing harm to you. Spray Schedules Winter maintenance includes spraying the ground around rose bushes with an insect-and-disease formula or horticultural oil. The insect-and-disease formula is used again in late. Jul 13, Spraying the leaves with a rose and flower insecticide works, and the bugs fall off the leaves immediately. Whiteflies, aphids, and over insects and bugs are.
Jan 13, When spraying homemade insecticide for rose bushes, apply the spray in early morning or late in the afternoon when bees aren't present or foraging for pollen.
Make sure to cover the infected area to coat the pests you can see. Spray the top and underside of the rose bushes' leaves as well as the shoots, buds and blooms.