Effect of Liquid Organic Manures on Larval and Cocoon Traits of Silkworm (Bombyx mori L.)

The Study was carried out at Department of Sericulture, UAS, GKVK, Bengaluru under irrigated condition during the 2020-21 to study effect soil application liquid organic manures in mulberry and its on larval cocoon traits silkworm, V-1 variety planted 90+150 × 60 cm spacing. Three different were tested against recommended dose fertilizer (control), leaf quality assessed via feeding silkworm. Significantly increased fifth instar weight (27.66 41.15 g/10 larvae, respectively) recorded both cross breed (PM x CSR2) double hybrid (FC1 FC2) silkworms fed with leaves produced from bio digested manure equivalent 150 % N ha-1 (T9). Double silkworm treatment (T9) showed significantly higher (24.76 cocoons), shell (5.89 shells), ratio (23.78 %), single filament length (1138.80 m) denier (3.65).