Insecticides for paddy are used to protect rice plants from pests such as aphids, leafhoppers, and planthoppers. They can also be used to control agricultural weeds and other unwanted plants in fields where rice is grown or stored. In addition to insecticides, there are other types of pest control products available for use in rice fields. These include repellents and attractants that help keep pests away from crops; growth regulators that prevent egg laying by insects; and systemic insecticides that are absorbed into plant tissue so they affect the entire plant rather than just one part such as its leaves or roots.
Rice is a staple crop for many of the world’s people, but it is also one of the most vulnerable to insects. Rice farmers use pesticides to keep their fields clear of pests, but insecticides are not always safe for humans and the environment. Insecticide for paddy is a chemical that kills insects that damage crops. The most common type of insecticide for paddy is an organophosphate, which works by attacking the nervous system of target pests.
Insecticides used on rice include lambda-cyhalothrin, malathion and zeta-cypermethrin. These three pesticides are broad-spectrum insecticides that can kill many different types of pests. They are also used on many other crops, including corn and cotton.
The first step to controlling rice pests is to determine what you’re dealing with. You’ll need to know whether the problem is due to insects, disease or weeds. Once you have an idea of what kind of pest you’re dealing with, you can begin treating it.
Pests are attracted to crops for various reasons: for food (insects), for shelter (diseases) or for water (weeds). When treating your field, make sure you know what kind of pest is causing problems so that you can treat it properly.
How do you control rice pests?
Rice pests are a major problem for rice farmers. They can destroy whole fields and make it impossible for farmers to make a living, which is why it’s so important to know how to control them.
There are two main types of rice pests: insects and rodents. Insects are usually controlled with pesticides, which you should use as directed by the manufacturer. Rodents can be controlled with traps and poisons.
The best way to control rice pests is to understand the pest’s lifecycle and its habits.
Rice pests have a fairly predictable lifecycle, which means that you can use their natural cycle to your advantage. Generally, a pest will go through four stages: egg, larva, pupa, and adult.
As an adult insect, it will mate with another adult insect of the same species and lay eggs in or on plants or other objects near water. The eggs hatch into larvae, which feed on organic matter in their environment until they are ready to pupate. Finally, they emerge as adults ready to mate again and begin the cycle.
The most effective way to control rice pests is by disrupting this cycle at any stage of its development. For example: if you want to get rid of an adult insect before it lays eggs (or if you want to prevent it from laying any), you can do something like spraying an insecticide directly onto its body or spraying the area where it lives with an insecticide that will kill all insects indiscriminately (but without harming other animals).
One of the best ways to control rice pests is through crop rotation. When you rotate your rice with a non-rice crop, you remove their food source and reverse their population buildup. This can also help prevent diseases that are common in certain types of rice.
Rotating rice with a non-rice crop removes the pests’ food source and reverses their population buildup. This is especially effective for those pests that depend on rice for sustenance, such as brown plant hoppers, army worms and cutworms.
Rotate your rice with another crop like corn or soybeans. After you harvest your second crop, let it lie in the field to dry out and kill any remaining pests before you plant your next rice crop there.
What are the 3 types of insecticides?
Insecticides are chemicals that can be used to kill insects. The three main types of insecticides are organic, synthetic, and inorganic. Organic insecticides are chemicals derived from living organisms, while synthetic insecticides are made in a laboratory. Inorganic insecticides do not contain carbon.
Organic Insecticides
Organic insecticides can be either systemic or contact. Systemic pesticides are absorbed by the plant and spread throughout its tissues. These poisons tend to stay in the plant longer than contact pesticides do, so they can protect the plant even after insects have begun feeding on it. Contact pesticides kill insects when they come into direct contact with the poison after landing on it or eating it.
Synthetic Insecticides
Synthetic pesticides include organophosphates, carbamates, pyrethroids, neonicotinoids, botanical oils (derived from plants), botanical extracts (derived from plants), and other chemical compounds that have been engineered specifically for use as insecticides. Many of these chemicals were developed to replace DDT because of concerns about its health effects on humans and wildlife; however, some of these new products may have their own side effects such as disrupting hormones or causing cancer in humans who inhale them during spraying campaigns.
Inorganic insecticides
Inorganic insecticides are usually made up of metals like arsenic or mercury. They’re usually applied directly to the surface of plants rather than sprayed on them like other types of pesticides because they pose less risk of contaminating groundwater sources when used properly.
What is major insect pest of rice?
Insect pests of rice include leaffolder, whorl maggot, and armyworms.
Leaffolder is one of the most common pests of rice, especially in the early stages of the crop. It is an insect that lays its eggs on the leaves of young rice plants. The larvae that hatch from these eggs burrow into the leaf tissue and feed on plant cells. This can cause extensive damage to crops and reduce yields dramatically.
Whorl maggot is another common pest of rice. Its larvae feed on the roots of young plants and can also cause significant damage to crops when left unchecked.
Armyworms are another common pest of rice that can cause serious damage to crops if left uncontrolled by farmers. Armyworms are known for their ability to move quickly through fields, consuming large quantities of food as they go. When left unchecked by farmers, armyworm infestations can result in significant losses for farmers who rely on this crop for income.
What is the best pesticide for rice weevil?
Rice weevil is a serious pest of rice crops, causing significant yield losses and deterioration in grain quality. Rice weevil can damage the rice plant by feeding on the grains, which results in discoloration and reduced weight. The insect also damages the grains by consuming the embryo.
Rice weevils are most active during warmer months, so they can be controlled by applying pesticides in early spring or late summer when the temperature reaches 75 degrees Fahrenheit. Novacide is our top recommended insecticide because it can kill adult weevils and comes with an IGR (or Insect Growth Regulator) which affects weevil larvae and eggs.
An IGR is a chemical that works by preventing the development of immature insects. It does this by disrupting the hormonal system of insects and preventing them from developing into adults. In many cases, these products are used on their own but they can also be combined with other pesticides to increase their effectiveness.
What chemicals are used in rice fields?
Rice fields are very sensitive to water which makes them difficult to grow. Rice crops are grown in low-lying areas which are susceptible to flooding or being submerged by too much water. To prevent this, farmers use chemicals that help the rice plants grow in spite of the excess water.
The chemicals used on rice fields include:
-Fertilizer: This helps the plants grow faster and stronger
-Pesticides: These help kill pests that may harm the crop or spoil it before harvesting. Many organochlorine pesticides known to be applied for pest management in rice cultivation included DDT, aldrin, dieldrin, endrin, heptachlor and technical hexachlorocyclohexane (HCH).
-Herbicides: These kill weeds and grasses that compete with the rice plants for nutrients and sunlight
-Insecticides: These are used to kill insects like beetles and other pests harmful to plants.
Common Rice Pest To Look Out For
Green rice leafhopper: Nephotettix virescens
Symptom of damage: Symptoms include yellowing of leaves from tip to base. Infected plant shows retarded and stunted growth. Plants dry up due to sucking up of the leaf.
Identification of insect pest:
- Eggs: Greenish transparent eggs are deposited in the leaf.
- Nymph: The nymphs are soft bodied, yellow white in colour. Gradually the colour changes to green.
- Adult: Adults are 3-5 mm long, green with black markings, wedge shaped.
Chemical management of Green rice leafhopper:
| S. No. | Technical name | Product name |
| 1. | Monocrotophos 36% SL | UPL PHOSKILL INSECTICIDE, MONOSTAR INSECTICIDE |
| 2. | Thiamethoxam (12.6%) + Lambdacyhalothrin (9.5%) ZC | ALIKA INSECTICIDE |
| 3. | Quinalphos 25 % EC | EKALUX INSECTICIDE |
| 4. | Thiamethoxam 25 % WG | ANANT INSECTICIDE , ACTARA INSECTICIDE, EXTRA SUPER INSECTICIDE |
| 5. | Fipronil 5 SC | REGENT SC INSECTICIDE |
| 6. | Carbosulfan 25% EC | MARSHAL INSECTICIDE |
| 7. | Acephate 500 + Imidacloprid 18 % SP | LANCER GOLD INSECTICIDE |
| 8. | Thiacloprid 240 SC (21.7% w/w) | ALANTO INSECTICIDE |
| 9. | Spiromesifen | OBERON INSECTICIDE |
| 10. | Imidacloprid | ADMIRE INSECTICIDE , CONFIDOR INSECTICIDE |
| 11. | Choropyriphos 50 % + Cypermethrin 5 % w/w | KORANDA 505 INSECTICIDE |
| 12. | Lambda Cyhalothrin 5 % EC | REEVA 5 INSECTICIDE |
| 13. | Tolfenpyrad 15% EC | KEEFUN INSECTICIDE |
| 14. | Profenofos | JASHN INSECTICIDE |
| 15. | Acetamiprid 20% SP | MANIK INSECTICIDE |
| 16. | Dinotefuran 20 % SG | OSHEEN INSECTICIDE |
Biological management of Green rice leafhopper:
| S. No. | Technical name | Product name |
| 1. | Azadiractin | ECONEEM PLUS – AZADIRACHTIN 10000 PPM – BIOPESTICIDE, ECOTIN ® – AZADIRACHTIN 50000 PPM (5%) EC – BIO INSECTICIDE |
| 2. | Spinetoram 11.7% SC | DELEGATE INSECTICIDE |
| 3. | Beauveria bassiana/brongniartii (1 x 108 Cells / ml) | SUN BIO BEVIGUARD (BIO INSECTICIDE BEAUVERIA BASSIANA) |
| 4. | 2 % ME –Microencapsulated liquid formulation (20,000ppm) | KOPPERT VIDI GREENPATH INSECTICIDE |
Rice leaf folder : Cnaphalocrocis mainsails / Marasmia patnalis
Symptom of damage: Leaves fold longitudinally and larvae remains inside. Larva scrapes the green tissues of the leaves which becomes white and dry. During severe infestation the whole field exhibits scorched appearance.
Identification of insect pest:
- Egg: Flat, oval in shape and yellowish white in colour
- Larva: Greenish translucent
- Adult: Moth is brownish with many dark wavy lines in centre and dark band on margin of wings
Chemical management of Rice Leaf folder:
| S. No. | Technical name | Product name |
| 1. | Chlorantraniliprole 18.5 % w/w | CORAGEN INSECTICIDE |
| 2. | Monocrotophos 36% SL | UPL PHOSKILL INSECTICIDE |
| 3. | Thiamethoxam (12.6%) + Lambdacyhalothrin (9.5%) ZC | ALIKA INSECTICIDE |
| 4. | Quinalphos 25 % EC | EKALUX INSECTICIDE |
| 5. | Profenophos 40%+Cypermethrin 4%EC | PROFEX SUPER INSECTICIDE, ROKET INSECTICIDE, |
| 6. | Carbosulfan 25% EC | MARSHAL INSECTICIDE |
| 7. | Flubendiamide 19.92% + Thiacloprid 19.92% w/w SC (480 SC) | BELT EXPERT INSECTICIDE |
| 8. | Flubendiamide 480SC (39.35% w/w) | FAME INSECTICIDE |
| 9. | Chlorantraniliprole (10 %)+ Lambdacyhalothrin (5%) ZC | AMPLIGO INSECTICIDE |
| 10. | Choropyriphos 50 % + Cypermethrin 5 % w/w | KORANDA 505 INSECTICIDE, LARA 909 INSECTICIDE, HAMLA 550 INSECTICIDE |
| 11. | Emamectin benzoate 5% SG | STARCLAIM INSECTICIDE, PROCLAIM INSECTICIDE, EM-1 INSECTICIDE, RILON INSECTICIDE, |
| 12. | Profenofos | JASHN INSECTICIDE |
| 13. | Cartap Hydrochloride 50% SP | CALDAN 50 SP INSECTICIDE |
| 14. | EC formulation of Ethion 40% + Cypermethrin 5% | NAGATA INSECTICIDE |
Biological management of Rice leaf folder:
| S. No. | Technical name | Product name |
| 1. | Spinetoram 11.7% SC | DELEGATE INSECTICIDE |
| 2. | Spinosad | TRACER INSECTICIDE |
| 3. | Bacillus thuringiensis var kurstaki | DELFIN WG ® – BACILLUS THURINGIENSIS |
| 4. | Azadirachtin | ECOTIN ® – AZADIRACHTIN 50000 PPM (5%) EC – BIO INSECTICIDE , NEEMOL (10000 PPM) BIO NEEM OIL INSECTICIDE |
Brown plant leafhopper: Nilaparvata lugens
Symptoms of damage: Nymphs and adults can be seen at the base of the plant. Infected plant dries up and gives a scorched appearance called “hopper burn”. This results in circular patches of drying and lodging of matured plant. It is more prominent in rainfed and irrigated environments
Identification of insect pest:
- Egg: Eggs are laid in a group of 2 to 12 in leaf sheath. White, transparent, cylinder-shaped and curved eggs are thrust in straight-line in two rows.
- Nymph: Freshly hatched nymph is cottony white, 0.6 mm long and it turns purple-brown.
- Adult: Adult hopper is 4.5-5.0 mm long and has a yellowish brown to dark brown body.
Chemical management of Brown plant hopper:
| S. No. | Technical name | Product name |
| 1. | Monocrotophos 36% SL | UPL PHOSKILL INSECTICIDE, MONOSTAR INSECTICIDE |
| 2. | Thiamethoxam (12.6%) + Lambdacyhalothrin (9.5%) ZC | ALIKA INSECTICIDE |
| 3. | Quinalphos 25 % EC | EKALUX INSECTICIDE |
| 4. | Thiamethoxam 25 % WG | ANANT INSECTICIDE, ACTARA INSECTICIDE, EXTRA SUPER INSECTICIDE, |
| 5. | Fipronil 5 SC | REGENT SC INSECTICIDE |
| 6. | Carbosulfan 25% EC | MARSHAL INSECTICIDE |
| 7. | Acephate 500 + Imidacloprid 18 % SP | LANCER GOLD INSECTICIDE |
| 8. | Thiacloprid 240 SC (21.7% w/w) | ALANTO INSECTICIDE |
| 9. | Spiromesifen | OBERON INSECTICIDE |
| 10. | Imidacloprid | ADMIRE INSECTICIDE, CONFIDOR INSECTICIDE |
| 11. | Choropyriphos 50 % + Cypermethrin 5 % w/w | KORANDA 505 INSECTICIDE |
| 12. | Lambda Cyhalothrin 5 % EC | REEVA 5 INSECTICIDE |
| 13. | Tolfenpyrad 15% EC | KEEFUN INSECTICIDE |
| 14. | Profenofos | JASHN INSECTICIDE |
| 15. | Acetamiprid 20% SP | MANIK INSECTICIDE |
| 16. | Dinotefuran 20 % SG | OSHEEN INSECTICIDE |
Biological management Brown plant hopper:
| S. No. | Technical name | Product name |
| 1. | Azadiractin | ECONEEM PLUS – AZADIRACHTIN 10000 PPM – BIOPESTICIDE, ECOTIN ® – AZADIRACHTIN 50000 PPM (5%) |
| 2. | Spinetoram 11.7% SC | DELEGATE INSECTICIDE |
| 3. | Beauveria bassiana/brongniartii (1 x 108 Cells / ml) | SUN BIO BEVIGUARD (BIO INSECTICIDE BEAUVERIA BASSIANA) |
| 5. | 2 % ME –Microencapsulated liquid formulation (20,000ppm) | KOPPERT VIDI GREENPATH INSECTICIDE |
Rice earhead bug: Leptocorisa acuta
Symptoms of damage: This bug sucks the sap from grains resulting in chaffy grains. Black spots can be seen on the grains at the site of feeding puncture. Buggy odour in rice field during milky stage.
Identification of insect pest:
- Egg: Circular, brownish and 2mm long which are laid in clusters in two rows.
- Nymph: Small, 2 mm long, pale green in colour which becomes deep green.
- Adult: Adults are greenish yellow, long and slender with a characteristics buggy odour.
Chemical management of Rice ear head bug:
| S. No. | Technical name | Product name |
| 1. | Thiamethoxam (12.6%) + Lambdacyhalothrin (9.5%) ZC | ALIKA INSECTICIDE |
| 2. | Thiamethoxam | ANANT INSECTICIDE , AREVA INSECTICIDE, ACTARA INSECTICIDE, EXTRA SUPER INSECTICIDE, NEO SUPER INSECTICIDE CAPER INSECTICIDE, BATTALION INSECTICIDE, KRI- OXM INSECTICIDE, TAIYO INSECTICIDE, CROPNOSYS CHIVAS INSECTICIDE GRANULES, MAXIMA THIAMETHOXAM 25% WG INSECTICIDE, SEEDOXM-FS INSECTICIDE |
| 3. | Chlorantraniliprole (10 %)+ Lambdacyhalothrin (5%) ZC | AMPLIGO INSECTICIDE |
| 4. | 200 g/kg Thiamethoxam + 200 g/kg Chlorantraniliprole | VOLIAM FLEXI INSECTICIDE |
| 5. | Flupyradifurone | SIVANTO® PRIME INSECTICIDE |
Biological management of Rice ear head bug:
| S. No. | Technical name | Product name |
| 1. | Azadiractin | ECONEEM PLUS – AZADIRACHTIN 10000 PPM – BIOPESTICIDE, ECOTIN ® – AZADIRACHTIN 50000 PPM (5%) EC – BIO INSECTICIDE, NEEMOL (10000 PPM) BIO NEEM OIL INSECTICIDE |
| 2. | Bacillus thuringiensis var kurstaki | DELFIN WG ® – BACILLUS THURINGIENSIS |
| 3. | Neem Oil extracts (Azadirachtin) | NEEMOL (10000 PPM) BIO NEEM OIL INSECTICIDE |