Skip to main content

Farmers and agricultural producers spend a significant amount of time and resources on keeping pests at bay. From the moment seeds are planted in the ground, insects become a concern until the produce is sold to the customer. This includes the storage and transportation stages after harvesting.

Insects can feed on the roots, stems, leaves and seeds or fruit of plants, causing considerable damage and financial losses for farmers. Any way to mitigate these risks without harming the environment is a top priority for producers. One effective way to prevent insects from getting into agricultural produce is by using the right packaging.

Bulk bags are an ideal solution as they can be customised to suit your specific needs. Custom Bulk Bags is a major manufacturer and supplier in South Africa. We produce up to 3.5 million bulk bags per annum, all of which have a minimum safety factor rating of 5:1. Our products can safely hold between 500kg and two tonnes of material per bag, depending on your specifications.

Tips for long-term grain storage

Why bulk bags are ideal for preventing insects

These packaging products are made from woven tapes of polypropylene and can be tailored to make them highly insect-resistant. With various top and bottom attachment options, bulk bags can completely enclose vegetables, fruits, grains and berries. 

Additional inner liners can be also placed inside each bag to seal out moisture and tiny insects that could potentially fit through the minute gaps between the polypropylene fabric tapes. Best of all, bulk bags are extremely affordable and reusable, making them a cost-effective investment for farmers and agricultural producers.

It has been proven that insect infestations can occur during the processing and distribution stages, so an insect-resistant packaging solution is necessary. This is especially relevant where insecticides and fumigants are not an option due to health and environmental risks. Bulk bags can keep your hard-earned produce free from insects and other pests throughout the transportation and storage periods.

As they are plastic-based, bulk bags are safe, non-toxic and inert, which is extremely important for foods and food-grade substances. They are effective at preserving product quality and ensuring the longevity of food items until they can be unpacked at supermarkets and stores.

Baffled bulk bags for agriculture

Our recommendations for insect-resistant packaging

Bulk bags are a great starting point but they should be customised to make them more effective at keeping insects out of your produce. A plastic inner liner not only does this, but it also prevents moisture and other contaminants from getting into the materials inside the bags. 

In addition, we recommend using a UV coating on the outside of the bulk bags to prevent the sun from damaging the fabric and to close the tiny pores between the weave. We’d suggest opting for a fully sealed design – either with a closed lid and full-bottom discharge or a top and bottom attachment that can be closed tightly with a drawstring.

Further recommendations will be made by our expert consultants once we have a better understanding of your business, the products you’ll be shipping and storing, as well as your unique needs when it comes to pest control processes. Our consultants will guide you through the specification process to ensure that you get the perfect packaging products.

If you need a non-toxic solution to insects, then consider bulk bags as your cost-effective, versatile and durable packaging products. For more information about our bulk bags or to get advice on the ideal design specifications, please contact us today.


Custom Bulk Bags is a leading South African manufacturer of woven polypropylene bags for various industries, such as mining, chemicals and food. We are able to produce over 3.5-million bulk bags per year, keeping our customers in stock at all times. Our bags adhere to the highest levels of quality as a result of our stringent in-house testing and quality control programmes.

Custom Bulk Bags holds ISO 9001 certification and we currently have a number of UN-certified designs. We are a Level 2 B-BBEE manufacturer and supplier and fall under the ownership structure of Deneb Investments Limited. For more information on our products, contact Follow us on Facebook, LinkedIn and Instagram for our latest news and industry insights.