Insects, a major risk for cereal storage

Insects represent a major risk to the quality and value of stored cereals. They can cause significant damage to grain by consuming it, perforating it and depositing their excrement, which can lead to : loss of weight and volume, deterioration in quality.

Insects can alter the flavour, smell and texture of the grainsPresence of contaminants, making it difficult or impossible to market.

Primary or secondary insects?

  • The primary insects : They attack whole, healthy grains as soon as they are infested in the silo. Among the most common are weevils (wheat weevil, rice weevil), bruchids and flour moths.
  • Secondary insects : They attack grains already damaged by primary insects, mould or handling. Among the most common are silvins, triboliums and capuchins.
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The importance of prevention and monitoring

Insect control is becoming increasingly complex. In just a few years, the number of plant protection products available has been considerably reduced, and more and more markets are ruling out their use. The use of alternative methods is therefore becoming an imperative, especially as the systematic use of insecticides can lead to the appearance of insects resistant to the handful of molecules still available on the market.

It is therefore essential to prioritise all preventive insect control measures, which can be grouped together in a technical storage itinerary, each stage of which contributes to the ultimate control of insects.

Monitoring temperature and ventilation: a key factor for success

Temperature plays a crucial role in the development of insects in stored cereals. Each insect species has a minimum development temperature (MDT) below which it cannot develop, and an optimum development temperature (T°C) at which it can develop most rapidly. 

In practice, the following effects can be observed: 

  • During the winter months, when temperatures in silos are low, insects are generally inactive. This is the ideal time to implement preventive measures, such as cleaning silos and storing healthy, dry grain.
  • In spring and summer, when temperatures rise, insects become more active and their development accelerates. This is the most critical period for combating infestations.

Consequently, monitoring temperature and detecting hot spots in grain silos are essential practices for preventing the risk of insects developing. Coupled with effective ventilation control to lower the temperature in the silos, this ensures optimum prevention.

3 ventilation levels recommended by Arvalis

To maintain the quality of the grain, it must be cooled as quickly as possible to protect it from insect pests.

To achieve this, a cooling ventilation strategy needs to be put in place as soon as the crop is harvested, to lower the temperature of the grains in successive stages to around 5°C at the start of winter.

Consequently, monitoring temperature and detecting hot spots in grain silos are essential practices for preventing the risk of insects developing. Coupled with effective ventilation control to lower the temperature in the silos, this ensures optimum prevention.

Discover the 3 ventilation levels
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Connecting silos and automating ventilation

Insect control is becoming increasingly complex. In just a few years, the number of plant protection products available has been considerably reduced, and more and more markets are ruling out their use. The use of alternative methods is therefore becoming an imperative, especially as the systematic use of insecticides can lead to the appearance of insects resistant to the handful of molecules still available on the market.

It is therefore essential to prioritise all preventive insect control measures, which can be grouped together in a technical storage itinerary, each stage of which contributes to the ultimate control of insects.

Javelot connected solutions eligible for CEPP

Since 2016, the C.E.P.P (Certificats d'Economie de Produit Phytopharmaceutique) scheme has aimed to reduce, improve and control the use of plant protection products in the agricultural environment.

Our connected solutions enable our customers (cooperatives, retailers, farmers) to collect C.E.P.P points via action sheet 2023-065, to justify their commitment to reducing the use of plant protection products.
Find out more about CEPP
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IoTrap, our solution for early insect detection

To connect all types of storage facilities and make our Store&save ® platform accessible to everyone. 

With a wide range of equipment, we connect all types of storage to feed all your temperature and ventilation data back to the Store&save ® platform in real time.

All our equipment operates on low-frequency radio networks, ensuring optimal data transmission regardless of your 3G/4G coverage.

 

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