Biological insecticides are made from natural ingredients such as garlic, chili, ginger, lemongrass . They are very safe for human health and environmentally friendly, capable of inhibiting repelling. and eradicating pests with high productivity without causing greasy while maintaining the productivity and quality of agricultural products.
Things to know about biological pesticides
- What are biological pesticides?
- Ways of biological insecticide
- Advantages of organic pesticides
- Safe for human health and the environment
- The manufacturing process for biological pesticides is simple, all from available materials
- Disadvantages of organic pesticides
- How to make biological pesticides
- You can make your own biological pesticides with some simple ones as follows
- Making bio-pesticides for family size
- How to use biological pesticides
- How to identify plants that can kill insects
- Things to keep in mind when using biological pesticides
What are biological pesticides?
Biological insecticides also known as organic pesticides are insecticides that use biological-based preparations to kill environmentally friendly pests.
Typically microorganisms (bacteria, fungi, viruses), substances in plants (toxins or vegetable oils), substances secreted by microorganisms (usually antibiotics), etc. to eradicate pests .
Ways of biological insecticide
Biological insecticides or commercially available pesticides are divided into two main groups, herbicides and microbiological insecticides .
- Herbicide : This is a pesticide that uses poisons extracted from plants or vegetable oils to kill pests.
- Microbiological insecticides : There are active ingredients including microorganisms such as bacteria, viruses, fungi, algae or protozoa.
One of the most popular micro pesticides today is extracted from Bacillus thuringiensis (Bt) strain. Bt can produce proteins that are not beneficial for insects to protect plants, especially potatoes, cabbage.
Most other microbial pesticides work by competing fiercely with harmful organisms.
Advantages of organic pesticides
Safe for human health and the environment
Unlike chemical pesticides, biological insecticides are rated as less toxic to humans as well as the environment. Consequently, more and more attention has been given to using it in recent years.
Microbiological preparations, vegetable oils used for insecticides are virtually harmless to humans and beneficial organisms (such as natural predators) thus can protect the biological balance in itself. However, limiting pest outbreak.
In particular, biological drugs leave little toxic residue on agricultural products, short isolation time, ensuring health for users.
The manufacturing process for biological pesticides is simple, all from available materials
Biological insecticide preparation materials can be found easily anytime, anywhere. Moreover, the production process is quite simple, not costly.
Disadvantages of organic pesticides
Biological insecticides generally produce relatively slow efficacy and stricter storage conditions than chemical pesticides. However, before the practical benefits, we can fully accept these disadvantages.
How to make biological pesticides
Currently, there are many ways to prepare biological insecticides, including the method to make use of plants with toxins to pests, or the most popular such as using eggshell, waterpipe tobacco .
These raw materials can produce biological pesticides.
The use of poisonous plants has a very good effect in protecting plants without affecting human health, does not pollute the environment and can be specially prepared for use. .
In fruits and vegetables such as garlic, ginger, neighbor, chili . contains acids that affect parts such as the skin, eyes of plant pests and destroy them.
In the root of the tobacco plant or in the leaves and stems of the sinus tree, the tobacco or leaf plant of the tomato plant has alkaloids; in the seeds of na or pea seeds . contain toxins for pests and diseases. Using waterpipe tobacco or tobacco also works to kill pests.
You can make your own biological pesticides with some simple ones as follows
- Pickled wine, alcohol: Collect vegetables, plants containing toxins such as garlic, chili, ginger, tomatoes . Wash, cut or dice into slices, soak alcohol or wine bucket, pots . Soaking time depends on each type. , usually 3 - 7 days to get the required amount of toxins. After soaking, strain the water and add water to spray the tree.
- Bring to a boil: Also, wash the ingredients, boil, boil for 1-2 hours, then decant the water to cool, add water to spray.
- Pressing (extracting): The above ingredients soak in water for about 15 minutes and then grind or pound the water to spray.
Making bio-pesticides for family size
- From garlic : Peel off 2-3 cloves, crush, mix with 2 cups of water, soak for 24 hours, then filter the juice, add 4 liters of water, put in a watering can and spray on infected plants. Note spray when it is cool and evenly both sides of leaves, upper, lower, trunk and stump.
- From chili : Crush or crush 10 chili peppers with only spicy, add a little water to soak overnight, until the next morning filtered juice, mixed with 1 liter of water, pour into a sprinkler on the diseased tree. Note spray when it is cool and evenly both sides of leaves, upper, lower, trunk and stump.
- From tomato leaves: Crush a few dozen tomato leaves, then soak with about 2 cups of water overnight, decant the water in the water and add 2 cups of water, then put in a spray bottle to spray the diseased plants. Note spray when it is cool and evenly both sides of leaves, upper, lower, trunk and stump.
- From a mixture of garlic, chili, ginger and neighbor: Prepare the ingredients just enough, wash, crush everything and then soak in alcohol or alcohol for about 15 days so that the hot, hot substances mix together, decant the water. then add water to spray on plants. This is a mixture of spicy, hot ingredients of garlic, chili, ginger, neighbor, wine . so when spraying, the worm shrinks and dies very quickly, can kill up to 85-90% of pests. Storage time is quite long up to 4-5 months.
- From waterpipe tobacco: Alternatively, use tobacco instead, take a pack of waterpipe tobacco or a pack of cigarettes soaked in warm water for 1 night, filter the water the next morning and then add a teaspoon of dishwashing liquid.
Mix the solution with 4 - 8 liters of water into a sprinkler to spray on diseased plants. Note spray when it is cool and evenly both sides of leaves, upper, lower, trunk and stump.
How to use biological pesticides
Depending on the pest and the plants that use different concentrations or densities. When preparing medicines from plants, it is possible to add some washing-up liquid, soap . or mineral oil for the purpose of increasing the adhesion of the drug.
Medicines made from plants are suitable for killing vegetable pests to create safe fruit and vegetable products.
How to identify plants that can kill insects
- Based on the resin, the fluid secreted from : Trees with a strong plastic smell, which causes an allergic or hot skin rash, the fluid of that tree contains toxins (such as seeds of beans, tobacco .).
- Based on smell : The plants that contain toxic substances have a strong, pungent, pungent odor . (such as the leaves and bark of oval trees, waterpipe tobacco leaves, tobacco, poison sumac .).
Keep track of small animals living around the tree such as ants, spiders .: If you do not see small animals living around the tree and use the tree for food, it is likely that the tree contains toxins and can be used as an insecticide (particularly waterpipe tobacco, tobacco still have aphids and harmful green worms).
Things to keep in mind when using biological pesticides
To achieve the best pest control effect, when using biological insecticides, you need to pay attention to the following:
- Use moderately, at the right time, without abuse: Organic pesticides should be used only when the depth of the density decreases crop yields, not just sprays or pests freshly sprayed.
- The best time to spray pesticides is when the caterpillar is young, because then the resistance of the insect is very poor.
- Bio-pesticides should not be mixed with other ingredients to avoid reducing their effectiveness.
- Should spray at a time of cool, dry weather .
- Use full protective gear such as long clothes, masks, gloves when spraying.