SOME PLANT EXTRACTS AGAINST ANTHRACNOSE INFECTION IN PAPAYA (Carica papaya)

Abstract

Wherever the papaya is grown, the foremost post-harvest disease is Anthracnose through Colletotrichum gloeosporioides
infection. The current research was conducted to evaluating plant extracts activity against to manage infection in hold on fruit in each
laboratory and field conditions. Plant specimens were collected from native area. The wood alcohal extract of Echinops sp. of 10 ¼L from the concentration of 50 mg/ml resulted within the highest inhibition zone of 13.5 mm against mycelial growth of C. gloeosporioides. Spore germination of C. gloeosporioides was reduced by 97.6%, 96.8% and 96.2% over the management by extracts of Echinops sp., Thymus serrulatus and Ocimum lamifolium, severally. Among four botanicals evaluated in vivo as 10% and 25% binary
compound extracts, Echinops sp. at 25% concentration showed disease severity score at 1.3 out of 5 and maintained quality of papaya fruit throughout 14 days experimental period. Further study is critical on sensory analysis and developing botanicals as natural fungicides.