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VOL. 10, ISSUE 9 (2025)
Behavioral study of crawler (first stage larva) of Abgrallaspis azadirachti (Ojha) (Homoptera: Coccoidea: Diaspididae)
Authors
Nidhi Sharma, Rajvir Singh Ojha
Abstract
The behavioral characteristics of the scale
insect crawler (First stage larva) of Abgrallaspis azadirachti
have been examined by the authors. Abgrallaspis azadirachti is a member
of the class Insecta, order Homoptera, group Coccoidea, family Diaspididae, and
subfamily Aspidiotinae. Armoured scales are the most successful group of plant
parasite insects and the most destructive, infamous, cost effective,
horticulture or agricultural pests. All members of this family are generally
referred to by this name. It is a significant Azadirachta indica
pest. The tropics, subtropics, and warmer regions of temperate zones are home
to cosmopolitan armoured scales. Armoured scale insects use mobile first instar
nymphs known as crawlers to disperse and colonize new places. The main
dissemination stage of Azadirachta indica’s life cycle is the
wonderful crawler. For the majority of armoured scales, the free – living
crawler is arguably the most vulnerable stage of development. Abgrallaspis
has a yellow – green crawler look. It is greatly impacted by elements such as crawler
sex, substrate type, temperature, and humidity. There is strong evidence that
diaspidid crawlers can only travel very small distances and very difficult
across bare soil or sand. Within the same species, male and female crawlers
frequently exhibit distinct behavioral tendencies. Abgrallaspis azadirachti
crawlers have long, fine caudal setae and a broad, flat body shape. Phototactic
and geotropic reactions have been found to exhibit behavioral differences
between the sexes.
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Pages:52-54
How to cite this article:
Nidhi Sharma, Rajvir Singh Ojha "Behavioral study of crawler (first stage larva) of <i>Abgrallaspis</i> <i>azadirachti</i> (Ojha) (Homoptera: Coccoidea: Diaspididae)". International Journal of Entomology Research, Vol 10, Issue 9, 2025, Pages 52-54
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