Basic Information
Product Name: Fomesafen
Chemical Name: 5-[2-Chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulfonyl)-2-nitrobenzamide
CAS NO.: 72178-02-0
Molecular Formula: C15H10ClF3N2O6S
Structural Formula:
Soybean is one of the most important food crops in the world, and weed control is one of the important tasks in soybean cultivation management. There are many kinds of weeds in soybean fields. As a herbicide for broad-leaved weeds in soybean fields, fomesafen can control velvetleaf, ghost needle grass, iron amaranth, thorn amaranthus, ragweed, Brassica, field bindweed, shepherd's purse, Cassia, Chenopodium, Artemisia, Echinacea, Polygonum spinosa, Polygonum spinosa, Commelina, Datura, Capsicum, Split-leaf morning glory, Corngrass, Purslane, Prickly thorn, Wild mustard, A variety of annual and perennial broad-leaved weeds, such as cattail, physalis, cocklebur, nightshade, etc., have a wide weeding spectrum. Used at the recommended dose, fomesafen can kill weeds by being absorbed by the stems, leaves and roots of weeds, helping to solve the problem of weeds inundation in soybean fields.
Mechanism of action
Fomesafen belongs to the protoporphyrinogen oxidase (PPO) inhibitor class of selective herbicides. It is absorbed through stems, leaves and roots, destroying the photosynthesis of weeds, causing yellowing of weed leaves or burning spots, and finally Wither and die.
Features
1. Mainly used to control broadleaf weeds.
2. After soybean seedlings, it can be mixed with fluazifop-p-p, fenoxyfop-p-p, quizalofop-p-p, clethodim, clomazone, bentazone, glyphosate, fenoxaprop-p-p , imazamox, etc. mixed.
3. Rain 4-6 hours after spraying will not affect the weeding effect. The residual effect period in the soil is longer.
4. It is not recommended to use high doses, which may easily cause drug injury. Adding artificially synthesized non-ionic surfactants and mineral oil additives such as azone, silicone, etc. to the liquid medicine will increase the harm of the medicine.
5. It can be used when interplanting soybeans in corn fields, but not when soybeans are intercropped with other sensitive crops.
Summary and Outlook
Fomesafen is the main herbicide used in soybean fields to control broad-leaved weeds. In addition to soybean fields, it can also be used in reeds, fruit trees, rubber plantations, and leguminous cover crops. The problem of phytotoxicity is the main factor limiting its use.
Excessive dosage or uneven application, and application under high temperature (above 28°C) and low humidity (relative humidity below 65%) conditions are prone to phytotoxicity. However, phytotoxicity can be avoided or reduced by strictly controlling the dosage, selecting subsequent crops, and applying pesticides under suitable temperature and humidity conditions. With the popularization of the safe use of pesticides, fomesafen will continue to play its role in reducing weed damage and helping farmers increase production and income.
