Bolworm or Bollworm: How To spell?
The word Bolworm is misspelled against Bollworm, a noun meaning "The larva of a moth (Heliothis armigera) which devours the bolls or unripe pods of the cotton plant, often doing great damage to the crops."
Bollworm has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings bo & worm which should not be misspelled with single 'L'
Wrong Spelling:  bo-l-worm  Correct Spelling:  bo-ll-worm 
Find more incorrect spellings of Bollworm to spell right way.