Sir, this is a question in general. However, we should practice situation specific alternate options to the synthetic ones per se... For instance, a biopesticide at an optimum rate, time, and dose.
Use gardening techniques that encourage vigorous plant growth and discourage pests. Plant a variety of species and rotate crops regularly and try companion-planting. Mix 1 tbsp (15 mL) of mild soap with 1 c (250 mL) cooking oil. Measure out both ingredients and pour them into a large bowl. Use either canola or vegetable cooking oil for best results. Combine 2 1/2 tsp (12 mL) of the mixture with 1 c (250 mL) of water. Plant-derived substances such as corn gluten, black pepper, and garlic compounds can be used as biopesticides to control insects. Compared to conventional chemical pesticides, biopesticides tend to pose fewer safety risks, can be effective in small quantities, and degrade quickly. There are different methods which can be adopted for saving the crops from the pests without using the pesticides. The techniques like crop rotation; intercropping and organic pesticides can be used. Onion And Garlic Spray Take about one clove of garlic and one medium-sized onion and add some water to them. Let it stay for a while before you add a teaspoon of cayenne pepper and a dash of liquid soap to the mix. Use it on your plants to ensure that no bug infests your produce. But did you know that there is an alternative to neem oil that is more effective and less smelly? More gardeners are making rosemary oil a part of their pest management routine by using Earth's Ally Insect Control. For hundreds of years, farmers have recognized rosemary oil for its ability to naturally repel pests. Neem oil is made from the seeds of neem trees, and it's a popular choice for getting rid of insects, mites, and diseases. In fact, neem oil is so effective at controlling so many different types of garden pests, it might become the only all-in-one spray you need to use. There are different methods which can be adopted for saving the crops from the pests without using the pesticides. The techniques like crop rotation; intercropping and organic pesticides can be used. Crop rotation is an efficient way of preventing pests from getting used to the types of plants that are being cultivated. Intercropping: Intercropping involves simultaneous cultivation of two or more crops on the same field. Some of the advantages of microbial control include reducing chemical pesticide use, improving crop quality, and reducing environmental contamination. In addition, they can be very specific where they target just a specific pest, thus being economical in the long term, and in some cases can be a self-sustaining system.