Plant Diagnostics

Sooty molds - Several

Damage

Sooty molds are dark fungi that grow on plant surfaces covered in honeydew excreted by insects with piercing/sucking mouth parts such as aphids, scale, mealybugs and whiteflies. It is generally harmless to plants, except when it is prolific, preventing light from reaching leaf surfaces, causing plants stress. This stress may make the plant more susceptible to other diseases or problems.

Cultural Controls

If sooty mold is extensive, do not apply fungicides. Rinse plants with cold water to remove honeydew, plant secretions, or early mold accumulation, especially in high humidity growing conditions. Scout for insect pests frequently. For heavy infestations, treat with contact or systemic insecticides.

Chemical Controls

Acephate
Signal Word: Caution
Pesticide Class: Organophosphate
Azadirachtin
Signal Word: Caution
Pesticide Class:
Bifenthrin
Signal Word: Caution
Pesticide Class: Synthetic pyrethroid
Chlorpyrifos
Signal Word: Danger
Pesticide Class: Organophosphate
Clothianidin
Signal Word: Caution
Pesticide Class: Neonicotinoid
Clothianidin+Bifenthrin
Signal Word: Caution
Pesticide Class: Neonicotinoid, Synthetic Pyrethroid
Cyfluthrin
Signal Word: Caution
Pesticide Class: Synthetic pyrethroid
Deltamethrin
Signal Word: Caution
Pesticide Class: Synthetic pyrethroid
Dinotefuran
Signal Word: Caution
Pesticide Class: Neonicotinoid
Fenpropathrin
Signal Word: Warning
Pesticide Class: Synthetic pyrethroid
Fluvalinate
Signal Word: Warning
Pesticide Class: Synthetic pyrethroid
Imidacloprid+Clothianidin
Signal Word: Caution
Pesticide Class: Neonicotinoid
Insecticidal soap
Signal Word: Caution
Pesticide Class: Insecticidal soap
Lambda-Cyhalothrin
Signal Word: Caution
Pesticide Class: Synthetic pyrethroid
Malathion
Signal Word: Warning
Pesticide Class: Organophosphate
Permethrin
Signal Word: Caution
Pesticide Class: Synthetic pyrethroid
Pyrethrins
Signal Word: Caution
Pesticide Class: Botanical
Thiamethoxam
Signal Word: Caution
Pesticide Class: Neonicotinoid
Ultra-fine oil
Signal Word: Caution
Pesticide Class: Horticultural oil

Locations Affected

branches, flowers, fruit, leaves, needles, stem, trunk

Plant Environment

greenhouse, outdoors

Scouting Season:

January - Early , January - Mid , January - Late , February - Early , February - Mid , February - Late , March - Early , March - Mid , March - Late , April - Early , April - Mid , April - Late , May - Early , May - Mid , May - Late , June - Early , June - Mid , June - Late , July - Early , July - Mid , July - Late , August - Early , August - Mid , August - Late , September - Early , September - Mid , September - Late , October - Early , October - Mid , October - Late , November - Early , November - Mid , November - Late , December - Early , December - Mid , December - Late

Plants Affected


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