Quinclorac Pesticide Grade

The English common name of quinclorac

The name of the other Quick kill tares, kill the tares net, tares star, Facet, BAS - 51406 - H.

The toxicity of

Chloroquine Lin acid belongs to low toxicity herbicide. Rat acute oral LD502680 mg/kg, rats caused by percutaneous LD50 > 2000 mg/kg. Acute inhalation LC50 (4 hours) > 5.2 mg/l, fish, toxic.

25%, 50% wettable powder formulations.

Product features

Chloroquine Lin acid is a hormone quinoline carboxylic acid herbicide, weeds poisoning symptoms similar to auxin class function, mainly used for the prevention and control of weed and pot life is very long, 1-7 leaf stage are effective. Rice good safety.

Scope of application

Is mainly used in paddy field weed. Can also control the rain for a long time, sesbania, water celery, duck tongue grass, honeylocust.

Method of use

1. Planting field weed 1-7 leaf stage can be applied, mu with 13.5-26 grams of effective components, spray, which terminates dry before medicine, medicine after water back into the field, 3-5 cm water.

2. Live field 2.5 leaf stage after seedling, applying pesticide dosage.

Matters needing attention

1. The residues in the soil is larger, produces the adr to crop after yi, can grow rice in the wheat-rice cropping, corn, sorghum.

2. The solanaceae (tobacco, potatoes, peppers, etc.), umbellate flowers (carrots, celery), chenopodiaceae (spinach, beet) malvaceae, cucurbitaceae (a variety of melon), leguminosae, compositae, flowering crops is sensitive to the drug.

3. To kill the grass Dan, benzyl its mixture of cycling, stam, etc.

Prevention and control of paddy weed commonly used herbicides

Chloroquine Lin acid is commonly used for the prevention and control of paddy weed herbicides. The drug can be absorbed by the germination of seeds, roots and leaves, has the characteristics of hormone herbicide, similar to the effect of auxin material in symptoms. Rice roots to chloroquine Lin acid decomposition, and thus security of rice. Chloroquine Lin acid in rice leaf stage 2 before use, easy to produce the adr, characterized by tillering stage of rice leaves hang freely, not tillering, and produce green tubular leaf. In front of the rice leaf 3, 2 chloroquine Lin acid pure drug dosage should not exceed 25 grams per acre chloroquine Lin acid (50% wettable powder 50 grams). Excessive use of chloroquine Lin acid, or spray pesticide applying not divide evenly, repeat, prone to the adr, suffer with thick green rice tillering happen slowly, late appear green tubular leaf. The adr light seedlings, stem base enlargement, harden, brittle, narrow leaves and twisted into deformity. Phytotoxicity symptoms usually appear in 10 ~ 15 days after applying pesticide.

The adr

Jiangdu FanChuan town live a large farm 200 acres of rice in the early use of chloroquine Lin acid and daughter (cyanide fluorine grass ester was 10%) after remove, now appear large leaf color dark, heart leaf curl and other symptoms. Learned, applying pesticide field for 20 days or so, in 3 ~ 4 leaves stage when applying pesticide, rice, with 50% per acre chloroquine Lin acid wettable powder 45 grams and daughter 50 ml, with mist spraying pump little water consumption (mu), after applying pesticide field in 4 ~ 5 leaves stage be exterminated entirely thousands of gold and weed, weed control effect is good. Now the rice seedlings for 30 cm tall, heart leaf curl. After reporter, found that the parcel in the upper second heart under pillow parts of leaf sheath smooth, not like a normal leaf ligule, auricle, leaf pillow and adjacent leaf sheath, leaf healing grow into a green tube. Accordingly, can judge the rice leaf color darkened, heart leaf curl is mainly caused by the two chloroquine Lin acid adr. According to understand, the paddy fields has been on the water management status, some time ago is a terrible field soil, paddy field in recent days been found adverse symptoms after dehydration, check the defects found in rice root growth, prismatomeria tetrandra is much, and there are black. The current field of rice plant for 3 ~ 4 tillering, ears stem tillers has more than enough total number of seedlings.

The field in 3 ~ 4 rice leaf stage with 50% per acre chloroquine Lin acid 45 grams, wettable powder dosage is not too big, the adr occurred after medication, may mainly because after applying pesticide field continues to water, rice roots in hypoxia condition for a long time, poor growth, appear a large number of prismatomeria tetrandra and black root, root activity decreased, after applying pesticide in rice two chloroquine Lin acid in the body can not be timely degradation, thus poisoning symptoms.

First, in order to strengthen the management of sewage sludge to promote root growth. At present, the total field of rice stem tillers has more than enough to ear seedlings number, need to put aside Gao Fengmiao field control. By resting field, the partial dry management, increase the oxygen in the soil, is advantageous to the rice root growth and recovery. Also can use salt humic acid foliar fertilizer and gibberellin to boost the growth of plant growth regulator to promote seedling recovery. Of gibberellic acid dosage is too high, each mu pure drug dosage shoulds not be more than 0.2 grams, otherwise easy to cause jumped high, moderate growth of rice (this kind of situation in the past has a large area), to the late management in trouble.

Ease chloroquine Lin acid and so on the many kinds of herbicide phytotoxicity of effective drugs

Blue shield (0.136% canola. Yin b. Gibberellic acid wettable powder) is to alleviate chloroquine Lin acid and so on the many kinds of herbicide phytotoxicity of effective drugs. The drug for a variety of complex dispensing of plant growth regulator, gibberellic acid containing 0.135%, indole acetic acid 0.00052%, canola lactone 0.00031%, relative to the gibberellin effect smoothly. The above field, add water spray with brigitte protect 3 grams per acre, estimated in 5 ~ 7 days namely can effectively alleviate symptoms of adr. Location, severe poisoning after the first use of blue armor 5 ~ 7 days, with brigitte protect 3 grams per acre spray again.