Stored Product Insects

Stored product insects (SPIs) are a major concern for both homes and businesses, especially in food-related industries. These pests can contaminate and damage raw materials used in food production, such as grains, cereals, dried fruits, and seeds. Every year, worldwide, storage insects cause damage to up to 12% of global grain production. They can easily penetrate through small gaps in packaging and cause significant harm.

These pests pose serious health hazards, contaminating food and leading to economic losses. Their damage can occur at any stage of the food production process, from harvest to packaging and even during consumer use. If not effectively controlled, an infestation can lead to severe losses in food quality and product integrity.

Signs of Stored Product Insects

Stored product insects are often so small that they are not immediately noticeable. However, there are clear signs to look for that indicate their presence:

• Damage: Found on raw materials or food products.

• Live or dead weevils: Visible exit holes in grains.

• Infected grain: Appears damp, mouldy, or may begin to germinate.

• Floury dust: Created as adults move between food sources.

• Moulded goods: Caused by insects like flour and grain beetles, leading to discoloration and mould growth.

• Holes in packaging: Inspect for cracks or gaps between packaging materials.

Control and Prevention of Stored Product Insects

Any business that handles cereals, grains, or dried food products is at risk of a stored product insect (SPI) infestation. Insects like beetles can easily damage and contaminate food materials, making them unsuitable for consumption.

Failing to address an SPI infestation can result in significant losses of stock and a damaged reputation for your business. Implementing a professional integrated pest management (IPM) program is the best solution for ensuring long-term protection against these pests, safeguarding the quality and safety of your food products.