Mites and insects occurring on some leafy ornamentals and floricultural plants in Howrah and Purba Medinipur districts of West Bengal, with their economic importance

The present paper deals with a total of 26 species mites under 10 families, 17 genera and 3 orders as well insects 5 9 orders, collected from some floricultural leafy ornamental plants in Howrah Purba Medinipur districts West Bengal. It may be mentioned here that these two are the largest producers plants. Among mites, there 14 4 families 8 which belong to phytophagous group, 7 predatory group remaining 2 many fungal feeding group. All listed their respective host/habitat plants, collection localities economic importance, if any. most injurious were observed field Tetranychus urticae on Dahlia variabilis, Oligonychus biharensis Rosa centifolia, Eutetranychus orientalis Tabernaemontana divaricata and, Eotetranychus suginamensis Nyctanthes arbor-tristis. Amblyseius largoensis herbicolus important predators occurrence other only occasional. insects, Ferrisia virgata, Aphis gossypii Scirothrips sp. Codiaeum variegatum, virgata Hibiscus rosa-sinensis, respectively found abundantly.