Trial of Beauveria bassiana (Bala.) Vuill.-a pathogenic fungus against larvae of Piesmopods obliquifesciell (Hmps.) (Pyralidae Lepidoptera) a leaf sticher of Cassia fistula
Trial of Beauveria bassiana (Bala.) Vuill.-a pathogenic fungus against larvae of Piesmopods obliquifesciell (Hmps.) (Pyralidae Lepidoptera) a leaf sticher of Cassia fistula
Parvez Khawaja, I.A. Hafiz and M. I. Chaudhry
ABSTRACT
Amaltas, Cassia fistula a beautiful ornamental and
avenue tree, well known for its medicinal value and
producing a very valuable timber is severely attacked by
a leaf stitcher, Piesmopoda obliquifasciella (Hmps).
Heavy infestation tarnish the beautiful look of the tree
for which it is grown as well as destroy annual growth
of the tree to the extent of 50-100% depending upon
severity of infestation. For developing a control method
safer to the environment a pathogenic fungus, Beauveria
bassiana (Bals.) Vuill. Was tried against the larval
stages of the pest. The fungus displayed its
pathogenecity by killing 72.5-97.5% larvae in various
treatments as against 50% natural mortality in check
treatment. The method can safely be used against the
pest on larges scale.
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December 1982
Vol. 32, Iss. 4
