Callosobruchus maculatus - Wikipedia
Eggs on cowpea and adzuki. A female adult can lay over a hundred eggs, and most of them will hatch. She lays an egg on the surface of a bean, and when the larva emerges about 4 to 8 days later, it burrows into the bean. [6]
Callosobruchus maculatus - Entomology and Nematology …
Eggs: A single female Callosobruchus maculatus lays more than 100 eggs during its lifetime and deposits one egg per seed. Eggs are transparent, oval, or spindle-shaped (Fig. 2) and glued to the seed surface (Beck and Blumer 2014). These are …
The Cowpea Weevil (Callosobruchus maculatus) - Insects Limited
Apr 7, 2021 · A female cowpea weevil can lay around 100 eggs on the surface of beans which hatch in about 4-8 days. Emerged larvae will burrow into a legume to feed and develop from within. After a week or two, the cowpea weevil will emerge out of the legume as an adult completing their life cycle in as little as 21 days.
Callosobruchus maculatus - Facts, Diet, Habitat & Pictures
A female adult can lay over a hundred eggs, and most of them will hatch. She lays an egg on the surface of a bean, and when the larva emerges about 4 to 8 days later, it burrows into the bean.
Control of Cowpea Weevil, Callosobruchus Maculatus (F.) …
These parent cowpea weevils were allowed to mate for seven days under laboratory conditions (25–28 °C and 60%–90% relative humidity) and lay eggs, after which they were removed. A day after emerging, the insects were sexed by the examination of the elytral pattern [ 9 ]; females are maculated with four elytral spots whereas males are plain ...
Cowpea Weevil - Field Guide to Common Texas Insects
Life Cycle: Adults may be found outdoors in flowers in early spring. Eggs laid by females hatch in 5 to 20 days. Larvae typically feed inside the cowpea, taking from 2 weeks to 6 months to develop before pupating there. Six or seven generations may occur per year. Habitat and Food Source (s): Mouthparts are for chewing.
(PDF) Cowpea weevil, Callosobruchus maculatus (Insecta: …
Sep 20, 2021 · C. maculatus female can lay more than 100 eggs during its lifetime and generally one egg is deposited per seed (Garima et al., 2021). A chance of increasing life cycle duration is obtained when...
Nov 1, 2018 · eggs on seed surface of host plants. Eggs hatch in 5–6 days and first instar larva burrows deep into the seed through the base of the seed. All larval stages complete within the single seed. Temperature and humidity greatly influence the development and survival of these weevils. Adult leaves a distinctively curved exit hole in the seed’s ...
Callosobruchus maculatus (cowpea weevil) | CABI Compendium
Nov 16, 2021 · Eggs The eggs are cemented to the surface of pulses and are smooth, domed structures with oval, flat bases. Larva and Pupa The larvae and pupae are normally only found in cells bored within the seeds of pulses. For descriptions and a key including C. maculatus larvae, see Prevett (1971) and Vats (1974). Adult C. maculatus adults are 2.0-3.5 mm ...
This species also is known as the southern cowpea weevil. The larvae of this species feed and develop exclusively on the seed of legumes (Fabaceae) hence the name bean beetle. The adults do not require food or water and spend their limited lifespan (one - …
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