MORPHOLOGICAL STUDIES ON GRAM POD BORER, HELICOVERPA ARMIGERA (HUBNER) (LEPIDOPTERA : NOCUTIDAE)
S.P. SHARMA *
PLANT QUARANTINE AND FUMIGATION STATION, BONGAON, 743235, INDIA.
S.C.. GOEL *
DEPTT.OF ZOOLOGY, S.D. COLLEGE, MUZAFFARNAGAR-251 001, INDIA
M. L. SAINI *
BIOASSAY DIVISION, CENTRAL INSECTICIDES LAB., DTE. P. P. Q. & S., N.H. IV, FARIDABAD - 121 001, INDIA.
*Author to whom correspondence should be addressed.
Abstract
The head capsule width of Helicoverpa armigera (Hb) larvae falls into six groups, each of which could be considered an instar. In addition to the head capsule width, an increase in the length and width of otherhead and body appendages also followed a geometrical progression confirmity with Dyar's law.