20% acetamiprid soluble concentrate (SL), registered for control of cotton aphids.10–15 mL/mu, spray.
This dosage is among the lowest tier for insecticides. For comparison with similar products: 40% dimethoate is applied at 75–100 mL/mu, whereas 20% acetamiprid requires only 10–15 mL/mu — a sixfold difference.
The difference lies inMechanism of action and activity请提供需要翻译的中文段落内容。
Product performance:
This product isNitromethylene classSystemic insecticide. It exhibits strong contact and penetrating action, with a relatively long residual effect, and can effectively control cotton aphids.
Acetamiprid belongs to the nitromethylene class (often broadly grouped within the neonicotinoid category, though its chemical structure differs from that of imidacloprid). Its target site is the nicotinic acetylcholine receptor in the insect nervous system.
Differences from organophosphates请提供需要翻译的中文段落。
- Organophosphates → inhibit acetylcholinesterase (preventing the breakdown of acetylcholine)
- Nitromethylene compounds → act directly on acetylcholine receptors (mimicking acetylcholine but failing to trigger normal nerve transmission)
Different targets mean thatThere is no cross-resistance between organophosphates and acetamiprid.— This represents an important rotational option for aphid populations that have already developed resistance to organophosphates.
First, high activity.The toxicity of nitromethylene compounds to aphids is far higher than that of organophosphates. 10–15 mL (20% formulation) corresponds to 2–3 g of active ingredient per mu, whereas dimethoate at 75–100 mL (40%) corresponds to 30–40 g per mu.
Second, strong penetrability.The product performance emphasizes "strong contact action andPenetrationEffect. The agent can penetrate the leaf surface and enter the tissue, so aphids feeding on the underside of leaves will also be poisoned. Penetration reduces the loss of the agent on the leaf surface.
Third, systemic translocation.After the pesticide is absorbed by the plant, it is ingested by aphids when they feed on the sap.
The superposition of the three factors enables high control efficacy to be achieved at low application rates.
Occurrence patternCotton aphids (primarily Aphis gossypii) can occur throughout the entire growth period of cotton, with two peak periods: the seedling stage (May-June) and the square and boll stage (July-August).
Damage mechanisms请提供需要翻译的中文段落。
Piercing-sucking of sap, causing leaf curling and stunted growth.
- Secretes honeydew, inducing sooty mold.
Here is the English translation: The application of UAVs in plant protection has significantly improved operational efficiency and precision. By carrying multispectral sensors and variable-rate spray systems, UAVs can achieve real-time monitoring of crop diseases and pests as well as targeted pesticide application. Compared with traditional ground-based sprayers, UAV spraying features strong adaptability to terrain, high operational efficiency, and reduced pesticide waste, making it particularly suitable for small- and medium-sized fields and complex terrains. However, UAV spraying is also affected by factors such as droplet drift, spray deposition uniformity, and meteorological conditions, which require further optimization of spray parameters and operational protocols to enhance control efficacy and reduce environmental pollution risks.Transmission of viral diseases(Cotton aphids are vectors of multiple viruses.)
Key points for prevention and control请提供需要翻译的中文段落。
The seedling stage is the key focus (damage to seedlings has a major impact).
When occurring in localized patches, perform targeted treatment rather than applying pesticides to the entire field.
- Pay attention to the protection of natural enemies (ladybugs, lacewings, and aphid parasitoids).
Cotton pre-harvest interval: 14 days; maximum 2 applications per season.
Cotton is not a directly consumed crop (used for fiber), so the 14-day interval is relatively lenient.
The upper limit of 2 applications needs attention.The cotton growing season is long (4–5 months), during which aphids can produce multiple generations. The pesticide must be rotated after two applications.
This actually reflects resistance management considerations.— Limit the number of applications to delay resistance development.
Note 2:
This product is effective againstHoney bees exhibit moderate toxicity and moderate risk.It appears that the source text you intended to translate is incomplete — only "；对" was provided, which does not contain a translatable Chinese paragraph. Could you please resend the full Chinese text?The silkworm (Bombyx mori) is characterized by high toxicity and high risk.During application, avoid harmful effects on surrounding bee colonies and sericulture areas.
Two different risk levels:
BeesModerately toxic, moderate risk. Application should still be avoided during the flowering period (cotton flowering stage, as well as surrounding nectar source plants).
The silkworm (Bombyx mori)Highly toxic and high-risk.The use of [pesticides] is strictly prohibited in the vicinity of sericulture areas.Mulberry leaves contaminated with pesticide residues can cause the death of the entire batch of silkworms, resulting in irreversible losses.
20% soluble concentrate (SL) is a liquid formulation that is miscible with water.
Compared with emulsifiable concentrates请提供需要翻译的中文段落。
- Contains no large amount of organic solvents, making it safer for crops (the solvents in emulsifiable concentrates may cause phytotoxicity).
Low odor
Low corrosiveness to spray equipment.
Compared with wettable powders请提供需要翻译的中文段落。
- Dust-free
Non-clogging nozzles
- More evenly dispersed
UsageDirectly dilute with water in the specified ratio, but it is still recommended to first dilute into a mother liquor in a small container.
Although acetamiprid belongs to a relatively independent mechanism of action,The resistance issue of neonicotinoids/nitromethylene compounds has become prominent in recent years.Resistance of aphids to this class of insecticides has been reported in many regions.
Rotation should involve crossing mechanisms.请提供需要翻译的中文段落。
- Pyrethroids (primarily contact action)
- Insect growth regulators (pyriproxyfen, buprofezin)
Diamide insecticides
- Microbial-derived agents (abamectin, spinosad)
Please provide the Chinese paragraph you would like me to translate.Although imidacloprid and acetamiprid differ in chemical structure, they share similar target sites, and potential cross-resistance between them means they should not be simply used as substitutes for each other.
Do not mix with alkaline pesticides.
Wear protective clothing and gloves during application.Avoid inhalation.
Do not clean application equipment in rivers, ponds, or other water bodies.
Cotton: pre-harvest interval 14 days, maximum 2 applications per season.
Cotton is a fiber crop, and a 14-day interval is relatively lenient. However,2 applications maximumNote: Cotton aphids can produce multiple generations throughout the entire cotton growing season, and the pesticide must be rotated after two applications.
Water source restrictionDo not clean application equipment in rivers, ponds, or other water bodies to avoid contaminating water sources.
Acetamiprid is toxic to aquatic organisms. Avoid ditches and ponds adjacent to cotton fields.
20% soluble concentrate does not contain large amounts of organic solvents:
Safer for crops.The solvents in emulsifiable concentrates may cause phytotoxicity to young tender tissues at high temperatures, whereas soluble concentrates do not have this problem.
Slight odor.— Better comfort for applicators.
Low corrosiveness to equipment.— Extend the service life of the sprayer.
More evenly dispersed— True solution state, no sedimentation, no nozzle clogging.
Chemical agents alone are difficult to sustainably control cotton aphids:
Agricultural measuresRational close planting; controlled nitrogen application (excessive nitrogen promotes rapid aphid reproduction); removal of field-edge weeds (overwintering hosts).
Biological controlProtect and utilize natural enemies (ladybugs, lacewings, aphid parasitoids, hoverflies).The key is to avoid broad-spectrum insecticides that kill natural enemies.— After natural enemies are killed, aphids often rebound explosively.
Chemical control.Spot and patch targeted treatment (no need for whole-field application), decision-making based on economic thresholds, and rotation of multiple mechanisms of action.
This "natural enemy" logic is very important.The failure of cotton aphid control is often not due to ineffective pesticides, but rather the destruction of natural enemies.
