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Grain Check Model: Elucidated
Here's Vismita explaining the entire model of Grain Check unit :)
Herbal paste - Going 'GREEN' against insects.
Food grain losses due to insect infestation during storage is a serious problem, particularly in the developing countries. Losses caused by insects include not only the direct consumption of kernels, but also accumulation of webbing, and cadavers. High levels of the insect detritus may result in grain that is unfit for human consumption and loss of the food commodities, both, in terms of quality and quantity.
Synthetic insecticides have been used extensively in grain facilities to control stored product insect pests. Although chemical insecticides are effective, their repeated use has led to residual toxicity, environmental pollution and an adverse effect on food besides side effect on humans.
Their uninterrupted and indiscriminate use not only has led to the development of resistant strains but also accumulation of toxic residues on food grains used for human consumption that has led to the health hazards.
Therefore to prevent the wastage of food grains in an eco-friendly manner, team Grain Check has decided to use a “Herbal paste” of plant and animal derivatives which are more readily biodegradable and less likely to contaminate the environment.
The most well-known example is the Indian Neem plant (Azadirachta indica). It's various parts, namely, leaves, crushed seeds, powdered fruits, oil, and so forth, have been used to protect stored grains from infestation. The Neem oil and kernel powder give effective grain protection as it repels insect pests like Sitophilus oryzae, Tribolium cataneum, Rhyzopertha dominica, and Callosobruchus chinensis at the rate of 1 to 2% kernel powder or oil . Eighteen species of Neem plant offered protection to wheat up to 9 months without affecting seed germination.
Turmeric, garlic, Vitex negundo, gliricidia, castor, Aristolochia, ginger, Agave americana, custard apple, Datura, Calotropis, Ipomoea, and coriander are some of the other widely used botanicals to control and repel crop pests .