Difenzoquat is primarily used as a selective herbicide in agricultural practices. It is particularly effective in controlling wild oats and other grassy weeds in cereal crops such as wheat and barley. The chemical works by disrupting the growth of these unwanted plants, ensuring that the cultivated crops have less competition for nutrients, water, and sunlight. This leads to improved crop yield and quality. Difenzoquat is applied post-emergence, meaning it is used after the crops and weeds have sprouted. Its selective nature allows it to target specific weed species without causing significant harm to the main crops, making it a valuable tool in integrated weed management strategies. Farmers often use it in combination with other herbicides to broaden the spectrum of weed control and to prevent the development of herbicide resistance in weed populations. Proper application techniques and adherence to recommended dosages are crucial to maximize its effectiveness while minimizing environmental impact.