Potato Alternaria ndi matenda oyamba ndi fungus omwe amatha kuwononga kwambiri mbewu za mbatata. M'nkhaniyi, tikambirana zaposachedwa za momwe tingapewere ndi kuwongolera matendawa, kuphatikiza njira zosamalira mbewu, mankhwala opha fungicides, ndi mitundu ya mbatata yosamva.
Malinga ndi kafukufuku waposachedwa kwambiri wa International Potato Center, Alternaria solani, bowa womwe umayambitsa Potato Alternaria, ukhoza kuwononga mpaka 20% ya zokolola zamitundu yomwe ingatengeke. Matendawa amakhala ndi mawanga akuda kapena zotupa pamasamba a mbatata, zimayambira, ndi ma tubers. Njira zodzitetezera zogwira mtima, monga kasinthasintha wa mbeu, kugwiritsa ntchito mbeu za mbatata zovomerezeka, komanso kuthirira koyenera, kungachepetse kufalikira kwa matendawa.
Kuzindikira msanga ndikofunikira kuti muzitha kuwongolera bwino Potato Alternaria. Alimi ndi akatswiri azamalimi ayenera kudziwa zizindikiro za matendawa, kuphatikizapo mawanga a masamba ndi zingwe. Zida zodziwira matenda monga kuyesa kwa PCR kumatha kutsimikizira kukhalapo kwa matendawa muzomera ndi dothi lomwe lili ndi kachilombo.
Ma fungicides amagwiritsidwa ntchito poletsa Potato Alternaria, ndipo njira zingapo zilipo, monga chlorothalonil, azoxystrobin, ndi propiconazole. Komabe, alimi ndi eni minda akuyenera kutsata mitengo yomwe akulimbikitsidwa kuti agwiritse ntchito komanso nthawi yake kuti apewe kudwala matenda oyamba ndi fungus.
Kugwiritsa ntchito mitundu ya mbatata yosamva ndi njira yabwino yothanirana ndi Mbatata Alternaria. Mitundu ina ya mbatata, monga Russet Burbank ndi Snowden, yawonetsa kukana kwa Alternaria solani. Pobzala mbewu zosamva bwino, alimi amatha kuchepetsa chiopsezo cha matenda ndikuchepetsa kutayika kwa zokolola.
Pomaliza, Potato Alternaria ndiyowopsa kwambiri pakupanga mbatata, koma ndi njira zoyendetsera bwino komanso njira zowongolera munthawi yake, alimi amatha kupewa ndikuwongolera matendawa. Pogwiritsa ntchito njira monga kasinthasintha wa mbeu, kugwiritsa ntchito mbatata yotsimikizika, kasamalidwe ka ulimi wothirira, mankhwala ophera fungal, ndi mitundu ya mbatata yosamva, titha kuteteza mbewu za mbatata ndikuwonetsetsa kuti chakudya chilipo.