| Thr ee ki nds of bi o-cont r ol st r ai ns HAB -5, A178 and HAB -1 ar e r espect i vel y Br evi baci l l us br evi s,
Baci l l us subt i l i s, Baci l l us at r ophaeus, and t hey have good ant agoni sm ef f ect on a var i et y of pl ant pat hogens. By
opt i mi zi ng t he condi t i ons ofcul t i vat i on,suspensi on concent r at e agent( SC)and capsul e s uspensi on ( CS)wer e r espect i vel y
made. W i t h mango ant hr ax f ungi ( Col l et ot r i chum gl oeospor i oi des Penz. ) C7 -2 st r ai n as t he t ar get , t he ef f ect s of
f or mul at i on on ant agoni st i c abi l i t y oft he t hr ee st r ai ns wer e t est ed.The r esul t s showed onl y A178 SC i n 10 t i mes and 800
t i mes di l ut i on had bet t er t han t he or i gi nals t r ai n,whi l e ant i f ungalef f ectofot her s wer e weaker t han t he or i gi nalst r ai n,
HAB-1 SC even l ostant i f ungalabi l i t y.Among t he t hr ee ki nds ofbi o-cont r olbact er i a CS,A178 under 100,400,800
t i mes di l ut i on had bet t er ant i f ungal ef f ect t han t he or i gi nal st r ai n, ant i f ungal abi l i t y i mpr oved by 0. 49% , 0. 29% and
3. 04% ,r espect i vel y.The ant i f ungalef f ect of HAB-5 under di f f er entdi l ut i ons wer e hi gher t han t hatof or i gi nal st r ai n,
i ncr eased by 5% , 3. 3% , 5. 11% , 2. 22% , 1. 74% and
4. 25% ,r espect i vel y.Butt he ant i f ungalef f ectofHAB-1
CS was weakened compar ed t o i t s or i gi nal st r ai n. The
r esul t i ndi cat es t hat mi cr ocapsul e f or mul at i on can
enhance t he ant i f ungal ef f ect of HAB -5 and A178
s t r ai ns. |
