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The adult female weevil drills a hole in a chestnut fruit and deposits one egg inside. The eggs are laid into the cupules or around the peduncle joints. Eggs hatch in five to seven days producing large, legless grubs. When the larva emerges from the egg it feeds on the developing chestnut. The larvae leave behind frass and excrement.
The eggs hatch in a few days to reveal legless, C-shaped grubs. [2] Newly hatched larvae move from the midrib into the leaf where they feed as leaf miners for three to four weeks. [ 4 ] Once they are ready to pupate, the grubs spin reddish-brown cocoons in one of the main mining halls they created as larvae.
Curculio is a genus of weevils belonging the family Curculionidae and subfamily Curculioninae. [1] [2] Members of the genus are commonly referred to as acorn weevils or nut weevils as they infest the seeds of trees such as oaks and hickories. The adult female weevil bores a tiny hole in the immature nut to lay her eggs, which then hatch into ...
The wheat weevil (Sitophilus granarius), also known as the grain weevil or granary weevil, is an insect that feeds on cereal grains, and is a common pest in many places. It can cause significant damage to harvested stored grains and may drastically decrease crop yields. The females lay many eggs and the larvae eat the inside of the grain kernels.
In addition to the license fee, you also have to pay an egg inspection fee, which is $.0035 per dozen eggs. The fee can either be paid quarterly or per dozen. A minimum fee of $15.00 per quarter ...
Most weevils feed on plants as larvae and adults, and they include important pests of cultivated plants that chew holes in fruits, nuts and other parts. [4] The long rostrum possessed by most adult weevils is used by females to help lay eggs (oviposit) inside plant tissue. [ 5 ]
Adult rice weevils are able to fly, [6] and can live for up to two years. Females lay 2–6 eggs per day and up to 300 over their lifetime. The female uses strong mandibles to chew a hole into a grain kernel after which she deposits a single egg within the hole, sealing it with secretions from her ovipositor.
Eustenopus villosus is a species of true weevil known as the yellow starthistle hairy weevil. It is used as an agent of biological pest control against the noxious weed yellow starthistle (Centaurea solstitialis). The adult weevil is hairy and brown with white stripes. It is 4 to 6 millimeters long, not including its long snout.