SU433663A3 - FUNGICIDE - Google Patents

Description

The invention relates to means of combating agricultural pests. It is known to use as fungic acid compounds of the general formula So in NC-NH-CYR NC-NH-CY I IIII where} and I are an alkyl group consisting of 1-12 carbon atoms, a halogen atom, methox flax group, phenyl or alkynyl group ; 2 hours of hydrogen or methyl group; X is a halogen atom, a nitro group or a methyl group; Sulfur atom or oxygen atom. For the purpose of enhancing the fungicidal activity of controlling phytopathogenic fungi, it has been proposed to use the compounds N-COOR NH-C NH-CO-RI as the fungicide, where the R-alkyls are 1-4 carbon atoms; a hydrogen atom, an alkyl group consisting of 1-6 carbon atoms, or an alkoxy group, the alkyl part of which consists of 1-4 carbon atoms, the carbon chains in the radicals R and H being normal or branched; New compounds are derived from the interaction of aniline derivatives of the general formula NHCOR (the value of C is given above) with the isothiomoyl formula of the general formula N-COOR (IV) 11 HjC-S -C NH-COOR i (the value of f is also given above). The form of application of new compounds is usual for: powders, suspensions, emulsions, solutions containing 0.05 - 80% by weight of active principle, and possibly new materials are used jointly with known pesticides. Mostly new compounds are used in doses of O, 1-5 O T of active substances per 1 gkp of water. Example 1. Antifungal activity in relation to ant cancer goat beans / preventive dey with g in ne /. Beans are cultivated in pots. By my Nieirry processing the age of these plants is 121 days. I The treatment is carried out by spraying a solution or suspension of the product in distilled water with a Tweetl content of - 8 O 0.02%, and the beans are planted in a turning pot. Each seedling receives approximately 4 cm of product; The control is treated with distilled water with O, 02% Twe € ti-8O. After treatment, the aqueous suspension is sprayed onto the foliage with cnopCottetOtricKufrv Ufldemuthlonum in such a manner that each seedling receives 1 cm of suspension / 1 O spore /. After infection, the seedlings are incubated first for three days at 22–2 ° C in an atmosphere saturated with moisture, then for four days under normal conditions of the greenhouse / 22 + 2 ° C and 7–8 O% relative humidity /. Seven days after infection, the minimum concentration was determined, causing a 95-10O% destruction of the fungus. The results are shown in Table. 1, T a b l and c a 1

Product

/ Formylamino-2-phenyl / -1-bis-methoxycarbonyl-2,3-guanidine

/ Aietamido-2-phenyl / -1-bis-metoksikaribonil- -2.3 guanidnn

/ 1 epta110Nlamino-2-4}) enyl / -1-bis-meloxyx1 rbonnl-2, 3-guanidine

/ Hexanoylamino-2- phenyl / -1- bis. - methoxycarbonne -2,3-guaiidin

/ Pronionamido-2 (unil / - 1-bis methox: icarbo1gil-2, 3-guanidine

/ Butyramido-2-phenyl / -1-bis-methoxycarbonyl-2, 3-guanidine

/ Methoxycarbram 11-amino-2-phenyl / -1-bis-methoxycarbonyl-2, 3-guanidine

/ 11entanolamy1 -2-phenyl / -1-bis-methoxycarbonyl-2, 3-guanidine

bis- (ethoxycarbonylthioureido) -1,2-bwnzol

With Ar / cm

95-100,

50

5 o

1OO

62

ZO

25

100

75

125

Example 2. Antifungal activity in relation to cucumber oidium (moreover, new action).

Ogur seedlings are cultivated in 6 pots. By the time of treatment, their age reaches three weeks.

An aqueous suspension of CtC / iOraceaPUfla spores is sprayed onto the seedlings in this way. that every 1 nurse receives 0.75 cm of this W suspension (7.5 1 10 spores).

After infection, the seedlings are left at 20–25 ° C and 7–80% relative humidity.

Processing carried out after 8 days

after infection, carried out by spraying,

Product

/ Hexanoylamino-2-phenyl / -1-bis-methoxycarbonyl-2,3-guanidine

/ Propionamido-2-phenyl / - 1-bis-methoxycarbo, nyl-2,3-guanidine

i

/Butyramido-2-ch}) / / -1.- bis-methoxycarbonyl-2, 3-guanidine

bis- (ethoxycarbonyltoureido) -1,2-benzene

I

/ known /

Example 3. Anti-fungal effect on the smut.

Sprouts grain.x cultivated in pots. By the time of processing these shoots 7 days.

The treatment is carried out by spraying the solution or suspension of the product being studied, the sprouts being placed on turning sides. Each pot receives about 8 cm of product.

Four pots of cereal correspond to each concentration.

solution or from the suspension of the studied products with different concentrations, and the seedlings are placed on a rotating pot. Each seedling receives approximately 3 cm of suspension.

Each cooTBeiw product concentration has 8 cucumber seedlings.

    3

7 days after infection, the concentration of the suspension is determined, causing 95-1OO% destruction of the fungus.

5-100 The results are shown in Table. 2

table 2

-95-100 /

40

ZO

thirty

5O

After processing, the aqueous suspension of E. clchopaceanuin uredospores is sprayed onto the sprouts so that each pot receives 1.5 cm of this suspension (7.5 10 ° spores).

After infection, the seedlings are incubated for three days at 20 + 2 ° C in an atmosphere saturated with moisture, then for 4 days under normal greenhouse conditions.

14 days after infection, the concentration is determined. causing the destruction of a fungus (CA,).

95-1OO

The results are shown in Table. 3

Product

/ Ethoxycarbonylamino-2-fetch-1-bis-methox-carbonyl-vi, 3-g-uanidine

The fo -shla shno-2-fen l / -. L-6is-metoksikarbonil - 2, 3-guadndin

/ Heptanoylamino-2-phenyl / -1-bis-methoxycarbonyl-2, 3-guanidine

/Methoxycarbonyl-2-2-phenyl / -1 bis-label-. with icarbo {gal-2,3-guanidine

BNS - / Ethoxycarbonylthioureido / -1,2-benzene / izcestno / Subject on the use of o-4 | enilendi-Mi .rua general formula II NH - CO-R,

8 Table 3

95.100,

250

1000

10OO

15OO

2000 36 40 where | is an alkyl group, consisting of 1-4 carbon atoms; R is a hydrogen atom, an alkyl group consisting of 1-6 carbon atoms, or an alkoxy group, the alkyl part of which contains 1-4 carbon atoms, with carbon atoms in alkyl and alkoxy (, x groups included in cocTa i R n C, form a normal or raavvetvleanuyu chain as a fungicide.