TY - JA AU - Bajet,N.B. AU - Renfro,B.L. AU - Valdéz Carrasco,J.M. TI - Control of tar spot of maize and its effect on yield SN - 0967-0874 PY - 1994/// CY - United Kingdom PB - Taylor & Francis KW - Chemical control KW - Disease control KW - Fungicides KW - Mexico KW - Mycoses KW - Plant diseases KW - AGROVOC KW - Trials KW - Zea mays N1 - Peer review N2 - The tar spot disease complex of maize and the effects of fungicides on disease development were examined during the November‐April 1988 cropping season in Mexico. The disease is caused by two fungi, Phyllachora maydis Maublanc and Microdochium maydis Muller & Samuels (teleomorph = Monographella maydis Muller & Samuels). The ascostromata of P. maydis can be observed on the lower leaves of the plants generally 10–18 days before silking. M. maydis the second fungus involved in the complex, was found in infected tissues 10–14 days after ascostromata formation. Lesions subsequently enlarged, appeared water‐soaked, and coalesced to cause leaf blight. Application of the fungicides Captan, Fenpropimorph, Carbendazim, Mancozeb, and Propiconazole significantly reduced the area under the tar spot disease progress curves, which in turn significantly increased grain yields. Fenpropimorph resulted in the lowest overall disease severity but not the highest yield. Disease severity in plants sprayed with Mancozeb was not significantly different from that in plants sprayed once with Fenpropimorph, but the former treatment resulted in higher yields and a lower incidence of Fusarium stalk rot UR - https://hdl.handle.net/20.500.12665/908 DO - https://doi.org/10.1080/09670879409371868 T2 - International Journal of Pest Management ER -