Alimi ena a ndiwo zamasamba, poyamba akukumana ndi madontho a chikasu pa masamba a phwetekere mu wowonjezera kutentha amakhumudwa - choncho, chifukwa mkatimo muli microclimate, ndipo tchire amatetezedwa ku chikoka choipa cha mlengalenga.
Zimayambitsa maonekedwe a chikasu pa masamba a phwetekere
Kawirikawiri, vutoli likhoza kuchitika m'milandu itatu:
- madontho a mame akugwa kuchokera padenga;
- matenda a fungal;
- fetereza feteleza.
Kuti mumvetse zomwe zinayambitsa masamba a phwetekere mu wowonjezera kutentha, muyenera kuyang'anitsitsa mosamala. Ngati chifukwacho chinali madontho a mame omwe amachokera ku kusiyana kwa kutentha kunja ndi mkati mwa wowonjezera kutentha, ndiye kuti sangakhudze kwambiri mbewu.
Mawanga otere amakhala oyera ndi nthawi, koma tsamba silinabwere ndipo likupitiriza kukula. Pofuna kuthandiza tomato, nkofunika kutsegula wowonjezera kutentha m'mawa, motero, kuchotsa chinyezi chachikulu.
Vuto lalikulu kwambiri, limene mbewu yonse imatha kufa, ndi maonekedwe a matenda a fungal of cladospotriosis . Ikhoza kuwuka chifukwa cha makulidwe a minda, pamene palibe njira yothetsera ventilate wowonjezera.
Chinthu chinanso chimene chimayambitsa kuwonongeka kwa fungutali ndi nyengo yotentha komanso kutentha kwambiri mkati mwa wowonjezera kutentha. Ngati muyang'anitsitsa masamba omwe akukhudzidwa, mukhoza kuona kuti ali ndi mawanga achikasu pamwamba, ndipo mawanga kumbuyo kwa pepala ndi ofiira. M'kupita kwa nthawi, chomera chokhudzidwacho chimakhudza kwambiri ndipo chimauma.
Chifukwa china chomwe masamba a phwetekere amawonekera chikasu mawanga - mobwerezabwereza feteleza . Makamaka, izi zikutanthauza kuchuluka kwa manyowa a ng'ombe m'nthaka komanso ngati ulimi wothirira. Ngati mukudziwa kuti malowa ndi owonjezera, ndiye kuti nyengoyi siidzasowetsedwe.
Ngati simukudziwa choti muchite, pamene masamba achikasu amaonekera pa masamba a phwetekere, njira yabwino kwambiri ndizochitira zomera ndi makoma a wowonjezera kutentha ndi mankhwala a mkuwa sulphate.