On the diagnostics of mealybug occurring on cotton, spherical mealybug Nipaecoccus viridis (Newstead) (Hemiptera: Pseudococcidae)

Abstract :

Detailed studies on the mealybugs collected from different parts of India on cotton and other hosts revealed the abundance of Nipaecoccus viridis (Newstead) (Hemiptera: Pseudococcidae), and established that it is emerging as next most widely distributed mealybug after Phenacoccus solenopsis Tinsley. This mealybug can be distinguished by its even segmented antennae, distribution of setae similar to cerariian setae on dorsal surface of the body and number of cerarii discernible with difficulty. The need to differentiate this from other important mealybugs occurring in cotton agroecosystems has been taken care of through making its diagnostics as simple as possible. The examination of populations from different regions, simplifying its diagnostics through illustration of taxonomic characters significant at all taxonomic levels and explaining their terminology has also been achieved

Keyword :

Coccoidea, taxonomic characters, illustrated diagnostics

Author(s) : Thomas, A., Ramamurthy, V. V.
Downloads : 1993
Published Issue : 2011 Vol. 6 Number 1

2011 Vol. 6 Number 1