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WJPR

World Journal of Pharmaceutical Research

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Pharmaceutical and Medical Research and Technology

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Abstract

MORPHOLOGY OF FOLIAR GALLS ON TREWIA NUDIFLORA INDUCED BY TRIOZA FLETCHERI CRAWFORD WITH A COMMENT ON LIFE CYCLE OF THE PSYLLID

Om Datta*, Dr. Sunil Tomar and Dr. S. C. Dhiman

Abstract

The Psyllid, Trioza fletcheri, is the major pest of Trewia nudiflora. which damages the leaves both qualitatively as well as quantitatively. 50- 70 % damage occurs to the foliage of the plant during peak period (August-September and October November). Galls are pouch like, formed on dorsal side of the leaf, initiated from the ventral side of the leaf by the feeding of 1st instar nymph. Gall measures from 0.924 to 2.125mm in length and 1.142 to 2.848 mm in width. Color changes from greenish to brown. Five nymphal instars have been observed. 26- 31 days duration of life cycle is observed.

Keywords: Trioza fletcheri, Trewia nudiflora, Gall morphology.

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