Describe the life history and pathogenicity of Pyrilla perpusilla. Note on its preventive measures.
(UPSC 2019, 10 Marks, )
पाइरिला पर्पुसिला के जीवन इतिहास और रोगजनकता का वर्णन करें। इसके निवारक उपायों पर ध्यान दें। (Describe the life history and pathogenicity of Pyrilla perpusilla. Note on its preventive measures.)
Describe the life history and pathogenicity of Pyrilla perpusilla. Note on its preventive measures.
(UPSC 2019, 10 Marks, )