iindaba

1. Inombolo yemesh, umbala kunye nobubanzi besikrini kuya kuqwalaselwa xa ukhetha isikrini sobungqina bezinambuzane kwi-greenhouse.

Ukuba inani le-mesh lincinci kwaye ubungakanani be-mesh bukhulu kakhulu, umphumo wokulawula izinambuzane awuyi kufezekiswa;Ukongezelela, ukuba inani likhulu kakhulu kwaye i-mesh incinci kakhulu, inokuthintela inambuzane, kodwa ukungena komoya kubi, okubangela ukushisa okuphezulu kunye nomthunzi ogqithiseleyo, ongenakukwazi ukukhula kwesityalo.

Ngokomzekelo, ekwindla, izinambuzane ezininzi zaqala ukufudukela kwi-shed, ngakumbi ezinye izinambuzane zenundu kunye nebhabhathane.Ngenxa yobukhulu bezi zinambuzane, amafama emifuno anokusebenzisa iminatha yokuthintela izinambuzane enomnatha omncinci ngokwentelekiso, njengeminatha engama-30-60 yokuthintela izinambuzane.

Nangona kunjalo, ukuba kukho ukhula oluninzi kunye neempukane ezimhlophe ngaphandle kweshedi, kuyimfuneko ukuthintela iimpukane ezimhlophe ukuba zingangeni ngomngxuma wokulawula izinambuzane ngokobukhulu bazo obuncinci.Kucetyiswa ukuba abalimi bemifuno basebenzise umnatha oshinyeneyo wokulawula izinambuzane, ezifana ne-40-60 mesh.

Umzekelo, isitshixo kuthintelo kunye nolawulo lwe-tomato yellow leaf curl virus (TY) kukukhetha igauze enayiloni ekwaziyo ukumelana nesinambuzane.Kwiimeko eziqhelekileyo, i-40 mesh ye-nylon gauze mesh yanele ukukhusela i-whitefly yecuba.Umoya oxineneyo kakhulu awulunganga, kwaye kunzima ukupholisa ebusuku eshedini emva kokutyala.Nangona kunjalo, i-mesh ye-mesh eveliswe kwimarike ye-mesh yangoku inoxande.Icala elimxinwa le-mesh ye-mesh ye-40 inokufikelela kwii-meshes ezingaphezu kwe-30, kwaye icala elibanzi lihlala lingaphezulu kwe-20 meshes, elingenako ukuhlangabezana neemfuno zokumisa i-whitefly.Ke ngoko, yi-50 ~ 60 mesh kuphela enokusetyenziselwa ukumisa impukane emhlophe.

Entlakohlaza nasekwindla, amaqondo obushushu aphantsi kwaye nokukhanya kubuthathaka, ngoko ke umnatha okhusela izinambuzane kufuneka ukhethwe.Ehlotyeni, ukuze kunikwe ingqwalaselo kumthunzi kunye nokupholisa, umnatha omnyama okanye ongwevu ongwevu kufuneka ukhethwe.Kwiindawo apho iintwala kunye nezifo zentsholongwane ziyingozi, iminatha esiliva engwevu yokuthintela izinambuzane kufuneka isetyenziswe ukugxotha iintwala kunye nokukhusela izifo ezibangelwa yintsholongwane.

2. Xa ukhetha iumnatha wokukhusela izinambuzane,nikela ingqalelo ukujonga ukuba ngaba iumnatha wokukhusela izinambuzaneigqityiwe

Abanye abalimi bemifuno banika ingxelo yokuba iminatha yokuqinisekisa izinambuzane ezininzi esanda kuthengwa inemingxuma, ngoko ke bakhumbuza abalimi bemifuno ukuba bandise iminatha yokuthintela izinambuzane xa bethenga kwaye bajonge ukuba iminatha yobungqina bezinambuzane inemingxuma.