Other weevils are used for biological control of invasive plants. Grain weevils will attack packages of cereal, flour, rice, oats, pet foods, chocolate, pasta and other similar packages goods. They crawl into packaging to eat, live and reproduce. History at your fingertips
The grain weevil cannot fly, but the closely-related merchant grain beetle can.Cereals, cake mixes, macaroni, cookies and chocolate, among other processed or packaged foods.Maybe it is, maybe it isn’t.
Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox.Articles from Britannica Encyclopedias for elementary and high school students. This article was most recently revised and updated by They are found in pantries, food processing areas, warehouses and grocery stores. Grain weevil, also called Granary Weevil, (species Sitophilus granarius), insect of the family Curculionidae (order Coleoptera), a common pest of stored grain.This small brown weevil is about 3 to 4 mm (0.1 inch) long. Our commitment is to you. A female can lie more than 200 eggs under favourable conditions (range 36-254).
The rice weevil has four orange-brown areas on the wing cases, and is about 3mm long with a characteristic rostrum (snout) protruding from its head. We evaluate the root of your problem, and recommend and enact pre-emptive measures before any chemicals are used. The click beetle is named for the sound it makes when the insect performs which of these behaviours? Infestations can quickly spread to every nearby packaged food. The female bores a hole in an individual cereal grain and implants an egg in it. Get kids back-to-school ready with Expedition: Learn! Grain Weevil (Sitophilus granarius) 3 – 4 mm. Large populations can develop in short periods, forcing adults to leave infested foods seeking new food sources. The females lay many eggs and the larvae eat the inside of the grain kernels. Our Customer Care Center walks you through every service, every charge, and every solution before you agree to anything.
Unlike the granary weevil, the rice weevil is winged and may occasionally fly. Store all dried food goods in zippered plastic bags, or glass or plastic containers with a tight lid to limit spreading.
Grain Weevil There are 3 different species: Sitophilus granaries (Grain Weevil) Sitophilus oryzae (Rice weevil) Sitophilus zeamais (Maize Weevil) Each of these species varies considerably in size but has a distinctive elongated snout which is adapted to the size of its preferred grain. First, contact us. The egg hatches in a few days. Obviously aeration can be used only if the storage is equipped with fans, ducts and a power source. (She can do this up to 254 times!) Best practices for insect control in grain in various storage types are presented in Table 2. It has biting mouth parts at the front of the rostrum and two club-like antennae. Some of the options for insect control can be used successfully only in some types of storages. The Grain Weevil is not able to fly, whereas the Rice Weevil is able to fly and this is often used to differentiate between the two weevils. Our editors will review what you’ve submitted and determine whether to revise the article. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The egg hatches and for one to five months depending on the season, the larva lives inside and feeds on the kernel as it grows. A female weevil lays an egg inside a grain kernel. Discard all infested packages. The boll weevil (Anthonomus grandis) attacks cotton crops; it lays its eggs inside cotton bolls and the larvae eat their way out. Biology The granary weevil female bores a hole into a kernel of grain and lays an egg, sealing the opening with gelatinous material.
Drop us a line to schedule your pest control services today!We’re licensed, trained, and certified by the Departments of Public Health and Agriculture, using safe, EPA-regulated materials, always.We don’t come in spraying. When it comes to the life cycle of the Grain Weevil and the Rice Weevil, it takes about 3 days in favourable conditions for the eggs of the Grain Weevil to hatch. Clean spilled grain and infested cabinet areas using a vacuum followed by soapy water. Our remedy for grain weevil control. We can even provide same-day service.