Sooty mold (black ear of wheat, alternaria leaf spot)
Alternaria alternata
Sooty molds are Ascomycete fungi which grow on plant exudates and the sugary honeydew secreted by insects such as aphids, scales, the whitefly, and other insects which suck sap from their host plants.
Plants located under pecan or hickory trees are particularly susceptible to sooty mold, because honeydew-secreting insects often inhabit these trees. The honeydew can rain down on neighboring and understory plants. The fungus itself does little harm to the plant; it merely blocks sunlight, and very rarely may stunt a plant's growth and yellow its foliage.
Pesticides
Acrobat
intensity: ★★★
Acrobat MZ 690
intensity: ★★★
Acrobat WDG
intensity: ★★★
Conan 500
intensity: ★★★
Manzate DF
intensity: ★★★
Rovral Aquaflo
intensity: ★★★
Rovral Liquid
intensity: ★★★
Sportak
intensity: ★★★
Subscribe
intensity: ★★★
Arysta LifeScience Mancozeb 750 WG
intensity: N/A
Corvette Flowable
intensity: N/A
Corvette Liquid
intensity: N/A
Drover Guard 500 SC
intensity: N/A
Iprodione Aquaflo
intensity: N/A
Panoctine
intensity: N/A
Transact
intensity: N/A