Nematosidahoi, nematisidaho (az nematodaho va lotini saedo — mekusham, mahv mekunam), moddahoi khimiyavi baron mahvi nematodahoi rastanikhuri zararrason. Makhsusan Nematosidahoi khlorpikrin, bromidi metil, nemagon, preparatp DD, karbotion, ki khususiyati fumiganti (hangomi dar holati gazu but ba vositai uzvhoi nafas ba organizmi nematoda dokhil shudan zahrolud mekunad) dorand, payvasthoi fosfororganikii kontakti yo sistemavi (karbofos, metilmerkaptofos, fosfamid) vase istifoda meshavand.
Nematosidaho tasirashon sistemanok ba vositai reshayu barg ba tamomi rastani pahn shuda onro baroi nematodahoi parazit zahrnok mekunad. Baze Nematosidaho (masalan, khlorpikrin) doroi tasiri kompleksi (intektisidi, fungisidi va gerbisidi) meboshand. Baroi mahvi nematodahoi paraziti reshai rastaniho Nematosidahoi fumigantiro ba khok meandozand yo baroi korkardi pesh az kishti tukhmi, piyozak, bekhmeva yo reshai kuchat istifoda mekunand. Nematosidahoi fosfororganikiro ba bargu poyai rastani meposhand.
Usul, vaqt va meyori istifodai Nematosidaho gunogun buda, ba shakl va khususiyathoi preparat, tipi khok, sharoiti muhit, namudi nematodaho va rastanii muhofizi vobasta meboshad. Nematosidahoi baroi rastani zahrnokro 10—40 shabonaruz pesh az kishtu kuchat yo tiramoh pesh az kishti ziroati soli oyanda ba zamin meandozand. Agar Nematosidahoro hangomi kishtu kuchat yo dar davrai nashvi ziroat ba zamin andozand zahrnokii onho kam meshavad. Ba qoidahoi nigahdori, kashondanu istifodai Nematosidaho va gayra rioya kardan shart ast. Nigared niz Kasalihoi nematodii rastany.
Ad.: Kiryanova E. S., Kral l E. L., Paraziticheskie nematodi rasteniy i meri borbi s nimi, tom 2, Leningrad 1971; Dekker X.. Nematodi rasteniy i borba s nimi, Moskva, 1972.