Jan 24, 2024 · Larvae look like small, white, or yellowish worms. A larva grows inside the grain kernel and matures into a pupa. It forms a cocoon and changes (undergoes metamorphosis). Within a month, the...

Weevils are small beetles that have noticeable snouts. They are often lightbulb- or pear-shaped. The immature, legless, grub-like larvae feed on plants. Adult weevils look for shelter in unfavorable weather conditions, especially when it is hot and dry.

Jan 1, 2025 · The weevil larva feeds on the internal tissues of the host plant, growing and developing until it is ready to pupate. This stage often happens within the plant or grain, hidden from sight, which makes it challenging to detect and control.

Weevil larvae, or billbugs can develop in turf grasses. Adult weevils are gray to nearly black beetles, up to 0.5 inches long and have a pronounced snout with chewing mouthparts. Adult weevils will “play dead” when disturbed, drawing in their legs and remaining motionless.

The boll weevil (Anthonomus grandis) attacks cotton crops; it lays its eggs inside cotton bolls and the larvae eat their way out. Other weevils are used for biological control of invasive plants. A weevil's rostrum, or elongated snout, hosts chewing mouthparts instead of the piercing mouthparts that proboscis -possessing insects are known for.

May 23, 2024 · Female weevils lay their small, white eggs inside grain kernels or on plant surfaces. The eggs then hatch into larvae, which resemble small, white or yellowish worms. These weevil larvae feed extensively on the grains or plant matter, causing significant damage as they grow and develop.

Weevil larvae look like white to yellow worm-like grubs and do not have legs. When weevil larvae hatch, they burrow into the soil and eat their host plant's roots or feed internally on seeds, grains, or rice kernels, in the case of rice weevils.

The larvae of grain weevils are small, legless grubs that develop inside whole corn, wheat, and rice kernels. Adult weevils emerge through tiny, round holes in the kernels, which is evidence of an infestation.

Stem weevil larva (photo by Joel DuBois) Puncturevine Seed Weevil (Microlarinus lareynii) Lifecycle. A female weevil chews a pit in a young, tender goathead, which contains the plant’s seeds, and lays a single egg in each pit; she then covers the egg with fecal matter. The eggs hatch in 2 to 3 days and then the larvae feed on the seeds inside ...

Root weevil larvae can be devastating to conifer seedlings. Woody plant seedlings and propagation cuttings are at risk from both root and top feeding. Injured plants may develop a greenish-yellow cast that does not respond to fertilization and watering.