SU673134A3 - Herbicide - Google Patents

Description

Cosch,

(one)

M.p. 77.5-78.5 ° C

 UO-NVNOz

M, eng

CoiCHy Cl

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CO $ tH DopMH application of the means - effective dust, granules, tablets, d), emulsion. They are prepared in common when making preparative forms of pesticides by methods. . Examples confirm the biological activity of the proposed compounds. Example. (Leaf processing test). . Plant to be processed Wheat ... Wild radish Small-leaved syst Sorrel Corn Veronica Bean All seeds are sown individually in clay pots with soil: seed germination with water with a penny containing the sample under the concentration and carrier indicated below, sprayed with leaves at each stage of development, as indicated below. Stage developed Plant First leaf Wild radish Same Beans: (Ginger Second leaf Small list Third leaf Veronica Same Wheat Corn 11 days after spraying, the degree of damage to the plants is noted. Figures 1 and 2 show the plot of the degree of damage to the races

- (2)

(3)

SIZ T.PL. 145-150 seconds

(four)

1.2 MMHg Art.

sn. teniums (in%) of the concentration (ppm) of the proposed (see Fig. 1) and known compounds (see Fig. 2): curve a for wheat, b for field radish, c for small leaves, Mr. rice, d - for Veronica, e - for corn,: “- for wild radish. In tab. 1 shows the coefficients of herbicidal selectivity. It can be seen from the graphs that ordinary beans can be destroyed by the proposed herbicidal composition at its concentration of 150 mg / l, whereas the same effect for a known composition is achieved only at a concentration of COO mg / l. At the same time, cultivated plants, such as wheat, are destroyed by a known compound at a concentration of 1; i.e. 100,000 ppm, while the dose of a predated, blended compound in this case is 200,000 ppm. PRI mme R 2. (Test for processing leaves). Seeds of wild radish and wheat are separately grown in clay pots. After germination with an aqueous suspension containing the test compound, indicated below, and the carrier at a certain concentration, the leaves are sprayed at a certain stage of development. Fifteen days after spraying, the degree of damage to the plants is calculated (the correspondence of the assessment of the degree of damage in points and percentages is given in Table 2.). The test results are listed in Table 3. Plants. Stage of development Wheat Second-third leaf Wild radish First-second leaf Primer. (Test for leaves of plants). The varieties listed below are similar to test results 1. The results are given in Symbols for Plant Stage times Warthog A Second l PerslEeapiaE First-Second Sage Sél Dol Veronica t) Get the fox. Catchneed bed-. atranIE Sem dol Shepherd spurse F Third l Hiqngusa G Second l Cygnus A V H Third l ft p and m e p 4. (Test for plant leaves). The plants and weeds of the test were described in Example 2. After spraying, the results of damage to the tab. 5. Plant Wheat Barley Carrot Beet Cucumber Wild radish Spinach (Test for soil soil). Clay pots filled with seeds containing seeds are different and then treated with water containing test and carrier. After 60 g of treatment, the extent of the day is determined. The results are given. Plants CaeSpitosurti BiEibA (ksEium araIpeV Kiurigusa., With FieldcressD GaginaHjponica OhwiЕEE pta atba HassksP Approx., (Soil test). Weed seeds are treated in Example 5 .. After the treatment, damage is determined. Results in Table 7., Plant Wheat. And Wild Radish In Carrots Millet D 4, Example 7. (Test for Soil Treatment in Field Conditions). Wheat and wild radish seeds are sown separately on the field at the beginning of the cell. {I. After germination by a water suspension containing compound 1 and vehicle sprayed with leaves. The results are given in the table. 8. Stage of development Plants Third and fourth Wheat leaf First and second Wild radish leaf Example 8. (Treating a layer of water over the soil.) Plants Rice, chicken millet, EEotine trianol f grass, broomstick, pyrfmaea, KeochaHs acituEans. Plastic pots (diameter 15 cm, height 10 cm) is filled with soil. The rice is sown in various ways. The seeds are sown directly into the soil (method I). Seeds of rice are sown in 3-4 stages of leaf formation (method P). Seeds are sown and left without transplant (Method III). A mixture of seeds of annual broadleaf weeds is sown in the soil. The seeds of perennial weeds are individually transplanted into pots. The seeds of chicken millet are sown in pots. P ska floats at the growth stage. After sowing, transplanting or floating in water, as indicated above, plastic pots are individually filled with water to a depth of 3 cm and then the suspension containing the test substance is added dropwise. 20 days after this treatment, the following results are obtained (see Table 9). P p and M e p 9, (Processing of the INSPECTION). Plant Stage development Lp1tapl4a muEth-sixth tiftora leaf RotaCa Incjica Tenth-twelfth leaf Condition of example 8. Example 10. (Processing of the syllable. Plant Pfcochari, acicu Eopis Chythe manthropus Mushroom Lu Migia prpsfrata Pfatine i QtaEa Inda Syrfum zygunyi of Example 8. Thus, the proposed compounds have a host of herbicidal activity. Compound N, / t,% S ift :: WSiu; jib; v .-:; - -i; Methyl 2-NITRO-5- (2,4- -dichlorophenoxy) thiobene-i zoate {compound) 0.01520 Methyl 2-nitro-5- (2, 46-trichlorophenoxy) thiobenzoate (known) 0.06 10 v ;; - t -: - - Symbols:% tuk "ya l to e" "in yes and -"

T. A b l and c a

Table 2

Table 1333.333 0.0375 20 533.333 9 276 166.667 0.0925 10 108.12 5.25 57.6 concentration for wild radish; concentration for wheat fodder} selective herbicidal coefficient, for the culture of wheat affected by wild radish; average concentration for dry broadleaf weeds; selective herbicide {coefficient for wheat culture affected by shee); Near-weed; average concentration for rice, wheat and. corn; selective herbicidal coefficient for crops of wheat, rice and maize affected by a wide variety of weeds (veronica, syt, wild radish and beans) .. j N,% t,% | t7 "t; ° / a T / 7

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Claims (2)

1. USSR author's certificate 426344, cl. And 01 N 9/14, 1970. 2. Patate of the USA 3784G35, c.-С 07 С 69/78, 01.08.74. % t SC 75 ISO 300 600 1250 Z500 3000 10000 25000 50000 100000 200000 Rig. I (h / MfiH) 100 so 7SISO 300 600 I2SO 2500 5000 10000 20000 50000 100000 Rig.2 (h / mpn)