Fungicides to Peach Trees & Roses

Peach trees (Prunus persica) and roses (Rosa) are susceptible to different bacterial diseases like powdery mildew, leaf curl, anthracnose and leaf stains. These fungal pathogens attack the plants causing a variety of degrees of damage to the leaves, fruit and flowers. To help control these fungal diseases, apply fungicides safe to be used on peach trees and roses.

Copper Fungicides

Copper fungicide, Bordeaux mixture and copper soap are a couple of pesticides controlling various bacterial infection assaulting peach flowers and trees. Bordeaux mixture consists of hydrated lime and copper sulfate mixed thoroughly, creating a fixed copper spray. Copper fungicides control powdery mildew, downy mildew and anthracnose. But Bordeaux mixture is just a bactericidal and a fungicide, so it controls diseases brought on by fungal pathogens and bacteria such as fire blight and bacteria leaf spot. Bordeaux mixture will even help control peach leaf curl.

Oil Fungicides

Jojoba oil, neem oil and horticultural oil are all-purpose oil fungicides created to control various fungal diseases and insects like leaf spot disease, rusts, black stains and mildews. Neem oil and jojoba oil are antimicrobial. Neem oil comes from the tropical neem tree (Azadirachta indica) and jojoba oil is extracted from the jojoba shrub’s (Simmondsia chinensis) seeds.

Soap Fungicides

Insecticidal soaps are an all-purpose pesticide controlling various fungal diseases and insects that attack peach roses and trees. Insecticidal soap controls fungicides by interrupting the cell membranes of this fungal pathogen. Insecticidal soaps will dominate sooty mould and common garden insects including mealybugs and scales without damaging birds or bees. Insecticidal soap fungicides also split down quickly and won’t leave harsh deposits in your peach trees and roses.

Lime Sulfur Fungicides

Lime sulfur fungicide consists of aloe and lime sulfur mixed together to control black spot, powdery mildew, anthracnose, peach leaf curl, rusts and several other fungal diseases. Lime sulfur fungicide may be applied as a dormant spray or during the active growing season. It may also be mixed with oil sprays to provide complete protection from insects and diseases which may attack the peach trees and roses.


Before applying fungicides to the plant, always read and follow the manufactures’ recommended instructions to help prevent damage to the peach trees and roses. Most fungicides must be implemented on calm, clear, warm days when the temperatures are below 90 degrees Fahrenheit. Besides fungicides, implement ethnic care procedures to help control the fungus and keep it from spreading. Most bacterial pathogens overwinter on fallen plant debris, so keeping the ground free of debris will reduce the chance of insects and problems. Other ethnic care practices include proper irrigation and air flow.

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