The filbertworm overwinters as a larva in a silken cocoon under leaves and debris on the ground or in cracks and crevices on trees. The weevils have different shapes and sizes.

Now on the ground, they fall prey to many other insects, birds, squirrels and eventually disease.This cycle of life begins with the Filbert Weevil looking for a safe, hard shelled and nutrient rich place to hatch their offspring. 1.1 Weevil Scientific Name: Curculionoidea; 1.2 Types of Weevils; 1.3 Weevil Species; 1.4 Weevil Characteristics; 1.5 Weevil Habitat; 1.6 What does weevil eat? Both filbert pests have a single generation per year. Once the tunnel or canal is drilled out, the Filbert Weevil will lay one or two eggs in the safe hard shell for them to develop. The filbertworm female differs in her oviposition behavior in that she lays her eggs on the outside of acorns, leaving the larvae to bore into the nut. This beautiful insect is extremely famous for its long snout that gives it a unique look. However, the filbert weevil can hibernate for several years in the soil as a pupa. That makes it the largest family in the animal kingdom. The weevil, which is in the Curculionoidea superfamily, is a very small beetle measuring to only about 6 mm to 10 mm. They There are more than 1,000 species of the Curculionidae.

They can be a real danger for the fruits, farms, and crops. As the female aggressively drills into the hard acorn with her snout, she also gets a meal. The method of entry into the outer shell is their snout which they use as a tiny drill. Weevils are one of the types of the beetles. A small beetle with a long skinny snout can be one of the culprits. However, the filbert weevil can hibernate for several years in the soil as a pupa.Recent research by the author on filbert pests of coast live oak trees in Marin County revealed that these insects preferentially oviposit on the shady side of trees. The Filbert Weevil may be small, but this small pest is responsible for damage to acorns and making it possible for other smaller pests, animals and disease to destroy any possibility of a new Oak tree from sprouting.The Filbert Weevil takes advantage of a perfect hard shell compartment to continue its life cycle and a place for their eggs to hatch and larva to develop into a fully grown adult. The larvae pupate in spring and the adults begin to emerge mid-June through October. Weevil Species, Types, Facts, Diet, Characteristics, Habitat, Lifespan, Common names and scientific names with lots of interesting facts are discussed here. Observations also revealed that many of the infested acorns on the sunny side of trees were split open.

One large difference between the typical beetle and a weevil is that the weevil has a snout. Infested acorn counts were three times greater on the shady side compared to the sunny side of trees.

The weevil is known to be a dark color, typically brown to black. But in nature’s world of survival this ends the possibility of a new Oak tree. After mating, the filbert weevil female, using her proboscis,drills small holes in immature acorns for the insertion of eggs. They are considered a pest for many species of oak tree due to the damage they cause to acorns. As the larva continues to grow, the fall season comes to the point of the Oak tree dropping its potential new saplings. Weevils are herbivorous beetles.

The Filbert Weevil may be small, but this small pest is responsible for damage to acorns and making it possible for other smaller pests, animals and disease to destroy any … They begin while the acorn is still on the tree and are smart enough to choose the shady side of the tree. The Filbert Weevil is only about ¼” in length, with a snout almost as long as their entire body. Prior to the Filbert Weevil boring the hole and eating out the inner nut meat, many of these other predators would not be able to break the shell or penetrate the interior.

They can hit the potato, tomato, eggplant, cotton and even flour bags. Its whole appearance is quite attractive but they actually feed on acorn of oak trees and that’s why they are harmful. As the acorns hit the ground, the Filbert Weevil gets the signal to emerge from its home as a full grown adult. The deeper she drills, the more nut meat she can eat on the way to making a home for her offspring. 1.7 What does a weevil look like? Some larvae also overwinter 1 to 2 inches beneath the soil surface. If the nut was to crack open, it would expose their eggs and cause them to die.

They have a long 'snout' at the front of their head, called a rostrum. As the fall season progresses Oak trees can come under attack by pests and disease. Monitoring and Control.


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