NL8601135A - INSECTICIDES, PREPARATIONS CONTAINING THESE INSECTICIDES AND METHODS FOR COMBATING INSECTS THEREOF. - Google Patents

Description

- Insecticides, preparations containing these insecticides and methods of controlling insects with them -

The present invention relates to insecticides, compositions containing these insecticides and methods of controlling insects therewith.

It has been found that the use of a) the compound of the formula I, hereinafter referred to as the common name "fluvalinate", together with b) the compound of the formula II, hereinafter referred to as the common name "thiometone", is particularly effective for controlling insect pests, in particular 10 aphids.

Fluvalinate is a known insecticide effective to control insects in cotton, vegetable and tobacco crops (see, for example, French Patent Application No. 2,405,922 and European Patent Application No. 15,038,617). Thiometon is also a well-known insecticide used to control aphids.

It has now been found that use of fluvalinate combined with thiometone surprisingly significantly enhances the effectiveness of the latter compound for controlling such insects, especially aphids.

As a result, the invention provides an improved method of controlling insects in a field which comprises applying an insecticidally effective amount of fluvalinate of Formula I and thiometone of Formula II, mixed or separately, in this area.

The method according to the invention is useful for controlling aphids and other pests of the order. ·. . <o 3 # -¾ - 2 - of the half-winged. It is particularly useful for controlling aphids in all crops, for example potato aphids (Myzus persicae and Macrosiphum euphorbiae), pea aphids (Arctisiphon pisi and Aphis fabae), aphids in cereals, aphids on beets, hops (Phorodon humili), sunflowers , turnips., beans, green peaches, and aphids in vegetable farms, in particular the aphids on green peaches (Myzus persicae) and on beans (Aphis fabae).

The weight ratio of fluvalinate thiometone 10 is preferably between 0.5-1: 1-3, especially between 0.6-0.8: 1.5-2.5, and is especially 0.72: 2.

Suitable amounts to be used are 0.030-0.060 kg, preferably 0.035-0.045 kg, per hectare of fluvalinate, mixed with 0.060-0.180 kg, preferably 0.090-0.150 kg, per hectare of thiometone. Particularly good results are obtained against aphids Myzus persicae and Aphis fabae by applying 0.432 kg per hectare of fluvalinate mixed with 0.120 kg per hectare of thiometone, for example by applying 0.500 or 0.600 l / ha of preparation with a concentration of 72 g / l of fluvalinate and 20 200/1 thiometone.

The use of fluvalinate and thiometone, mixed or in separate form, can be done according to known methods and with the aid of conventional devices.

The invention also relates to a composition with an insecticidal effect which contains as active ingredients the compound of the formula I and the compound of the formula II.

In a composition according to the invention, the weight ratio of fluvalinate to thiometone is preferably as indicated above.

The preparation according to the invention can be used in both solid and liquid forms, for instance in the form of a wettable powder or an emulsifiable, concentrated product in which conventional diluents are present. 0 Ö Ψ r - 3 - included. Such compositions can be obtained in a conventional manner, for example, by mixing the active ingredients with a diluent and, if desired, other processing ingredients, such as surfactants.

The term diluent as used herein refers to any liquid or solid, acceptable for agricultural purposes, material that can be added to the active ingredient to bring it into a more convenient or more useful form, respectively, a useful or desired action strength. . For example, it can be talc, kaolin, diatomaceous earth, xylene or water.

Liquid forms include non-phytotoxic diluents, such as alcohols, glycols, glycol ethers, aliphatic and aromatic hydrocarbons, for example, xylene, alkylnaphthalenes, and other petroleum distillation products and ketones, for example, cyclohexanol and isophorone. Adjuvants, such as surfactants, for example, wetting agents and emulsifying agents, such as polyglycol ethers formed by reacting alkylene oxides with alcohols, mercaptans or high molecular weight alkylphenols and / or alkylbenzene sulfonates, can be included in emulsifiable, concentrated forms. Adjuvants such as wetting agents, for example condensation products of formaldehyde with naphthalene sulfonate, an alkyl aryl sulfonate or a lignin sulfonate, can be included in wettable powders which will be used as an aqueous suspension.

The preparations according to the invention can also be presented in the form of a twin pack.

Generally, the compositions contain 0.1-90 wt.% Active ingredients, 0-20 wt.% Of an agribusiness acceptable surfactant, and 99.99-10 wt.% Diluent (s), the active ones agents consisting of the compound of the formula I and the compound of the formula II are preferably present in the above-defined weight ratio.

Concentrated forms of the compositions will generally contain from about 2 to 90% by weight, preferably from about 5 to 70% by weight, of active ingredients. The dosage forms of the preparation may contain, for example, 0.1-20% by weight, preferably 0.1-5% by weight, of active ingredients.

In addition to the aforementioned carriers, diluents and adjuvants, other additives such as stabilizers, deactivators, surface adhesion promoters, anti-corrosive agents, anti-foaming agents and pigments may be included.

In the following examples, all parts 1e # and percentages are parts by weight and percentages by weight, respectively.

Example 1

85 parts of fluvalinate and 210 parts of 90 thiometone are mixed with 60 parts of dioctylphenyl decaglycol ether and 20 parts of the calcium salt of an alkyl aryl sulfonate and 625 parts of xylene. The emulsifiable, concentrated product thus obtained can, before use, be diluted with water to the desired concentration.

25

Example 2

20 parts of the calcium salt of an alkylaryl sulfonate and 33 parts of nonylphenyl polyglycol ether are added to 412 parts of an aromatic petroleum fraction having a boiling point of 156-178 ° C and the resulting mixture is stirred until a homogeneous solution is obtained. Then 30 parts of a commercially available stabilizing agent and then -1 9-5, then 400 parts of thiometone (50%) and 80 parts of fluvalinate (90%) are added and the mixture is intimately mixed until a homogeneous solution is obtained. The emulsifiable, concentrated product thus obtained can be diluted with water to the desired concentration before use.

Application examples

The effectiveness of the new aphid control combination is demonstrated by the experiments carried out on beet. In these experiments, spraying was carried out with 0.500 or 0.600 l / ha of an emulsifiable, concentrated product obtained according to Examples 1 or 2, containing 72 g / l fluvalinate and 200 g / l thiometone.

Application takes place at the beginning of the infection, ie 1 green peach aphid (Myzus persicae) for 2 beets and 20-30% of the beets are infected with bean aphids (Aphis fabae). The lice were assessed at 20 or 25 beets per field, before application of the preparations and 2, 7, 14, 21 and 28 days later.

20 The results are shown in the following tables. In the tables, M Myzus indicates persicae and A Aphis fabae.

Test A (Table a)

The test was performed on the Masabel-25 variety at the 10-leaf stage. At the beginning, 36 green peach lice for 25 beets and 6 bean lice for 25 beets were present.

30 m. _, _, Y - 6 -

Table a

Average number of aphids for 25 beets after application (in days)

Dose 2 7 14 21 5 -, ---, ----

M A'H AlMA MA

i .-------------------------------- r --------------- 1 ------ · '»t

| I

untreated 22 2.3 114 6.3 2.3 3.5 0.5! 7.8 i i u ——_ _______ {........; _______ l! 10 0.5 1 / ha 6 1.3 1.5 1.3 0! 1 y 0 I 4.5 ___ '...... i _! _: _ Ί .......

Test B (Table b) ^ The test was performed on the Arigo mono variety at the 8-12 leaves stage. The beets were artificially infected by applying 4 aphids to 5 beets.

_Table b_ ~ _ 2Q Average number of aphids for 25 beets after application (in days) π. 2 7 14 21

Dose (| _________________ Μ A ____ M ____ A ___ Μ A______M 1__A___ 1 "untreated 36-115 y 36 186 20 339 16 47 25 __________________________l_______________________________

i T

0.5 1 / ha 0.5 6! 0.5 4 1 73 1.3 64 _____ l ί_

Test C (Table c) 30

The test was performed on the Haweduca variety at the 8-10 leaves stage. At the beginning, 299 bean aphids for 25 beets were present.

,. "" J

- 7 - __ Table c

Average number of aphids for 25 beets after application (in days)

Dose 2 | 7 14 21 5 ---! -

A A A A

untreated 305 607 1070 2578 ------------------------------------------- ------------------- 10 0.5 1 / ha 8 32 y 181 715

__I I

Test D (Table d)

The test was performed on the beet-15 variety Virtus at the stage of 4-6 leaves. The average number of green peach lice. and bean beet aphids for the use of the composition was 52.5 and 1, respectively.

_Table d_ 20 Average number of aphids for 20 beets after application (in days) 2 7 14 21 28

Dose__________ μ Ia m | a i μ i a m i a; μ I a

I I! ! I

-------------------- f ----: --- + ---- 1 -------------- ï ------- 25 iii '· "untreated 49.5 4; 44.5 2.51184-20.7 464 14.5 519 16.2 ______________! ____ i ________ Y ____; _____" ___ Y .___ | ___________ 0 .5 1 / ha 21.8 3 | 24.5 2.2 58.0; 8.5 69.5 4.0 y107 5.2 ________________ ί ________ i ____; _____ y ____ l_Y ._________ 1 T: 0.6 1 / ha 6.0! 0.5, 9.0 1.2 15.5 2.5 42.8 1.5 * 77 4.7 30.

Trial E (Table e)

The test was carried out on the beet variety Donor at the stage of 6-8 leaves. The plants were mainly »h_

v S

- 8 - infected with green peach lice (average 27.5 for 20 beets to fit the preparation). During 15 days, both the green peach aphid pollination and the bean aphids that appeared after 15 days grew.

_Table e_ '

Average number of aphids for 20 beets after administration {in days) 2 8 15 21 28

Dose - | ------ -r ---- 1- 10 μ; a μ a m j a m a m'a __Mïïllg ^ „L j ...... _, ί i nxet-be | traded 27.3 - 105.8 - 278 | 28.2 75.8 50.5 12.5! 0.5 1 / ha 2.0 - 9.3 - 15.3 * 13.0 4.8 25.2 2.81 15 '- III ml «^ · Ι. ifc 1111.1111 W I— - - rn I— - 1— - M - - —-------. _

; \ I

0.6 1 / ha 1.0 - 1, 0 - 12.3 2.0 2.5 9.7! 4.5! ! i _____i_ 1 i |

Test F (Table f) 20 ....

The test was performed on the bone variety

Monohil at the stage of 6-8 leaves. The average number of green peach and bean aphids to use the compositions was 3.0 and 38.5, respectively. Lice disappeared 15 days after treatment.

25 _Table f_

Average number of aphids for 20 beets after application (in days)

Dose 2 7 15

M! A M'A M; a

3o - T

untreated 6.2 7.3 6.8: 16.3 67.7 | 24.3 -------------------------- j--.

i i V .. ... 1 - 9 -, j (Table f continued) j

i; i! i I

0.5 1 / ha; 0.2 y 0.0 4.8 I 2.0 18.2! 12.8 --------- j ------ i ----- i ---------------------- 1- ------ y 5 0.6 1 / ha I 0.2 I 0.3 y 0.5 0.8 10.7 12.5; i I; _I_i -: __! _ I

Test G (Table g)

The test was carried out on the beet variety Monosvalof at the stage of 6-8 leaves. Before application, the average numbers of green peach aphids and bean aphids for 20 beets were 11.2 and 37.5, respectively.

_Table g_

Average number of aphids for 20 beets j 15 after administration (in days)

Dose 1 \ 7 15 21

M A: M 'A H | A A · A

untreated 5.5 38.8 y 12.8 29.0 5.7; 160.3 | 40.5 40.5 20 ------------------ f -------- 1 -----; ------ i-- ----------- i; f 0.5 1 / ha 0.5 0.8 0.3 0.0 0.3 * 33.6 \ 23.8 ’23.7 1 i _________________ I _________; _ _ _ l ___ Y ______: ______________ 7 -:’ i; ; 0.6 1 / ha 0.0 0.3 t 0.0 0.5 0.3 y 20.6 i 28.5: 28.5! ; I:! _ 1 i_! _ 25 Test H (Table h)

The test was carried out on the beet variety Virtus at the stage of 2-4 leaves. The average number of green peach aphids before application was 12 for 20 beets.

30::: 3 5> V ** - 10 - _ Table h____

Average number of aphids of 20 beets after administration (in days)

Dose 2 7 25 21 28 | !

5 M: A Μ A MA MAM A

I -. - ~ r-! ““ “Non-treatment! paid 16.5 | 21.8 14.2: 5.5 3.2 10.5 14.0 25.3: 5.5 31.0 5! --------------- 1 ---------------------------------- -------------------- 0.5 l / ha 4.0 8.8 2.5; 1.3 0.2 0.8 0.5 6.5; 3.3 16.0

10 _ [________L

! ; 0.6 l / ha 1.5 1.5 2.7 1.3 0.2! 1.5 0.7! 3.5 4.7 24.0! t I I i _; _ l_I_ | _! __

No phytotoxic symptoms could be observed in tests A-H described above.

-. Λ}

Claims (17)

Method for controlling insects in a region, characterized in that, in this region, mixed or separated, a) the compound of the formula I is applied together with 5 b) the compound of the formula II. Process according to claim 1, characterized in that the weight ratio of compound of formula I to compound of formula II is 0.5-1: 1-3. 3. Process according to claim 2, characterized in that the weight ratio of compound of formula I to compound of formula II is between 0.6-0-8 and 1.5-2.5. Process according to claim 3, characterized in that the weight ratio of compound of formula I to compound of formula II is 0.72: 2. 5. Process according to claims 1-4, characterized in that the compound of formula I and the compound of formula II are applied in an amount of 0.030-0.060 kg / ha and 0.060-0.180 kg / ha respectively. 6. Process according to claim 5, characterized in that the compound of formula I and the compound of formula II are used in an amount of 0.035-0.045 kg / ha and 0.090-0.150 kg / ha respectively. 7. Process according to claim 6, characterized in that the compound of formula I and the compound of formula II are used in an amount of 0.432 kg / ha and 0.120 kg / ha respectively. A method according to any one of claims 1-7, m.k., that the area is a potato, sunflower, pea, cereal, beet, hop, turnip or garden nursery area. Method according to any one of claims 1-8, characterized in that the insects to be controlled are aphids. ♦ * - 12 - Method according to claim 9, characterized in that the aphids are potato lice, sunflower lice, pea lice, turnip lice, grain lice, beet lice, hop lice, bean lice, green peach lice or horticultural lice. Method according to claim 10, characterized in that the lice are bean lice or green peach lice. An insecticidal composition comprising as active ingredients the compound of formula I and the compound of formula II as defined in claim 1. Preparation according to claim 12, characterized in that the weight ratio of the compound of the formula I to the compound of the formula II is between 1.5-1 and 1-3. 14. A composition according to claim 13, characterized in that the weight ratio of compound of formula I to compound of formula II is between 0.6-0.8 and 1.5-2.5. Preparation according to claim 14, characterized in that the weight ratio of the compound of the formula I to the compound of the formula II is 0.72: 2. 16. A composition according to any one of claims 12-20, characterized in that it contains 0.1-90% of the compounds of formula I and II. 17. Method as described in the description and / or examples. «S / 25 -oooooo- lf \ J CH» CHj \ / α XCH CN F3C— <Cy NH-CH — COO — CH - [^ J] —O — y ^ yy CHjO S \ II _s - (CHj ^ - S —CjHs- CH3o SANDOZ AG Basel, Switzerland / - 'G- v - - - * J *; ___j