The bread beetle or baker beetle
The bread beetle, also known as a baker beetle of grocery stores is fried with all our foodstuffs. Its larva is a "every eat": vegetable materials such as biscuits and other cereal products, herbal products, spices, seeds, turtles, chocolates, coffees etc. and even animal products such as meat, bone and fish flours.
If you have bread beetle in your home, you will have to eliminate them because they can create real damage. Find out in this folder a set of answers and natural products that will allow you to fight this ice insect at best.
Get to know the bread beetle
Fight against the bread beetle
Is also known as Stegobie of pharmacies
Latin name: Stegobium paniceum
Adult size: 2 to 3.7mm length.
Larva: 1.5 to 3.5mm length at the end of development.
Location: Common in nature, especially in warm climates and heated buildings.
Period: Its activity period extends from April to September
Although the bread beetle is of the same family as the small or large calf of the wood, its feeding mode is totally different. small and large scallops are xylophageal insects (from the Greek "who eats wood") while the bread beetle is a polyphage insect ("who eats everything")
What you need to know about the bread beetle
The particularity of the insects of the family of anobiidae is of power, when they feel in danger, simulate death. so they can stay still hours.
The bread beetle is a common insect in nature. At the end of the winter, he can settle in houses, warehouses or museums and stay there until he finds food. Some individuals were found in Egyptian mummies.
The bread beetle is able to eat almost everything: dried food products (from plant or animal origin) and non-food items such as books, biological collections or works of art.
But its preference is for amylaced products (food products based on starch, potato starches and their derivatives).
If the adult bread beetle flees light (natural or artificial) they are attracted to ultraviolet rays. So it's a way to trap her.
The adult has the cylindrical and oblong body with a heavily bombed and enlarged chest on the sides. its color can go from yellowish brown, reddish to very dark brown.
The larva, for her part, looks like a small bleached green. Its color darkens slightly by ageing.
B- development cycle
Like many insects, its cycle depends on climate conditions (temperature and humidity) and diet. This cycle can last from 2 to 3 months for temperatures between 22° and 25°C, but can go up to 7 months if the temperature is 17°C below 15°C and above 34°C, development is no longer possible. the adult dies when the temperature is below - 10°C (congelator) and the eggs are killed at a temperature below - 5°C.
In good conditions, there can be maximum four annual generations. the female lays for about 20 days, from 40 to 60 eggs on average. These hatches after 1 to 2 weeks.
The larva, on the basis of its very small size and its ability to move, can enter tiny spaces and thus contaminate many foodstuffs. At the end of 8 weeks on average, the larva builds a cocoon and nymphosis. this stage lasts, depending on the temperature, from 9 to 18 days. the larva having a relatively slow development, so the present foodstuffs must be stored long enough to complete its cycle. avoiding long-term storage is also a solution to eliminate them.
The larva of the bread beetle has a weak for all foods containing starch like bread (wheat, rice, flour, beans, peas, pastry, pastry) from which its name. if it does not find this type of food, it can very well attack, just like the anthrene, at all that is of organic origin: spices, paper, leather, fabrics, dried plants, bamboo, osier, wool, cork but also some old paintings, collections intomological, naturalized animals, skin bindings, archives, parchments, leathers, relics (especially those of swine) the very small round holes of 1 to 1.5 mm that he drills on infested materials before taking his flight are an indication of his presence. when traveling and when necessary, it can even drill thin lead leaves.
Just as for the woods, it's the very voracious larvae that commit the damage. Adults don't feed themselves.
Given its very varied diet, the means to fight the bread beetle depend on where you find it. You will proceed as for the food machine if you find it in your pasta package, as for the textile machine if you find it in your wardrobe or as for the antirene if you find it to devour your precious books .
As the bread beetle has a clear preference for all products containing starch, we will look for its presence rather in the kitchen cupboards.
1 - Empty all the kitchen cupboards.
2 - Discard all foods infested or not in a fully hermetic packaging.
In case of doubt, you can put your products a few hours to the freezer if they support it.
3 - Pass the vacuum cleaner in all the closets by insisting on the slits and sucking all the debris and crumbs that might be there.
4 - Empty the vacuum cleaner or throw the bag. it may contain live larvae.
6 - When everything is dry, treat with our insecticide 4j diluted to 5% the whole closet (see 500ml for 5m² treated surface). for large surfaces, you can also use this same product, but under concentrated form. You will then need to dilute it to 5% with water (950ml water + 50ml concentrated insecticide)
7 -In the field of fumigation fogger habitat Biovétol Will complement the anti-dollal treatment of bread beetle. insecticide based on plant-based assets (pyrethre + géraniol) for the background treatment of habitat. very volatile, the solution is deposited in the smallest corners where pests and insects are located. immediate and prolonged action.
8 - Put all your food back in the closets, but be careful, in totally hermetic boxes.
9 - You can put, in the closet, some food anti-mite bags Yes, you read: Food mites. this product will have the same action on the bread beetle. the smell of laurel partially masking the smell of food, thus preventing it from approaching and consuming it.
Source : insects of cultural heritage (dangerous insects for heritage works): https://insectes-nuisibles.cicrp.fr/en/
For a complete study, do not hesitate to consult "comparative study of bioactive substances for the protection of heritage properties against pests"on the site of the ceroart.