cao su nacen
Agricultre Research 

Fungal strains capable of inhibiting the growth of the pathogenic fungus C. salmonicolor on rubber plants.

Nacentech HCM

Result:

  • From rubber garden soil samples, 23 strains of fungies and 61 strains of actinomycetes were obtained.
  • From natural soil samples, 19 strains of fungies and 102 strains of actinomycetes were obtained.
  • Resistance rate of isolates against pink fungus from 11,55% to 100% after 28 days. Strains CT14G1 and PT15G9 have the ability to antagonize pink fungus with the rate of 100% after 7 days of antagonistic culture on PDA medium. Strain PC4G8 is Aspergillus sp, Strain CT14G1 is Trichoderma sp, Strain PC15G9 is Kibdelosporangium sp.
  • The combination of all three microbial strains PT15G9 + CT14G1 + PC4G8 strongly inhibited the growth of pink fungus. Pathogenic pink fungus stain length in the treatment mixture of three strains spores PT15G9 + CT14G1 + PC4G8 was only 2 mm compared with 5,7 – 6 mm in the control treatment after 2 days, and only 2,33 mm compared to 16,67 – 17 mm in the control treatment after 9 days.

corticium salmonicolor
Fig 1. Pink fungus grows on rubber body after 2 days of treatment or no treatment with PT15G9 + CT14G1+ PC4G8 mixture


Fig 2. Pink fungus develops on rubber bodys after 7 days of treatment or no treatment with PT15G9 + PC4G8 mixture
corticium salmonicolor
Fig 3. Pink fungus grows on rubber body after 9 days of treatment or no PT15G9 + CT14G1+ PC4G8 mixture
corticium salmonicolor