JPH03261704A - Granule for pest control - Google Patents

Abstract

PURPOSE:To provide the title granules containing, as active ingredient, an insecticide/herbicide consisting of 1-(6-chloro-3-pyridylmethyl)-N- nitroimidazolidin-2-ylideneamine and sulfoniumurea-based compound (s). CONSTITUTION:The objective granules containing, as active ingredient, (A) 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine and (B) at least one sulfonylurea-based compound {esp.pref. ethyl-5-[3-(4,6-dimethoxypyrimidin-2- yl)-ureidosulfonyl]-1-methylpyrazole-4-carboxylate}. The present active ingredient is further incorporated with one or more herbicidal active ingredients for Allium macrostemon, etc., into a granular agent for paddy. The present granules is such an agent as to enable weed control over a long period of time in a single application.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a novel pest control granule containing a specific known insecticide active ingredient and a specific known herbicide active ingredient as active ingredients. In particular, it relates to granules for use in paddy fields.

[Conventional technology and issues]

Conventionally, herbicidal granules, especially granules containing two or more types of herbicidal active ingredients, have been well known and used as granules for paddy fields.

Insecticidal granules for paddy fields are also known, but granules for paddy fields that contain both an insecticidal active ingredient and a herbicidal active ingredient in one granule are not well known.

In recent years, in the field of paddy rice, labor saving and cost reduction have been desired, and it is now possible to control major paddy rice pests and at the same time control paddy field weeds over a long period of time by spraying pesticide granules once. There is a demand for the appearance of granules for paddy fields.

[Means to solve the problem]

The present invention comprises (1) I-(6-chloro-3-pyridylmethyl)N-nidroidecilidin-2-ylideneamine [hereinafter referred to as compound (1)] and one or more sulbonyl urea compounds as active ingredients. (2) A granule for use in paddy fields containing as active ingredients the active ingredient described in item 1 above and one or more types I or more of herbicide active ingredients effective against grasshoppers and the like.

(3) The granules for controlling pests according to item 1 above, wherein the sulfonylurea compound is any of the following four types of compounds.

■ Ethyl-5-[3-(4,6-dimethoxypyrimidin-2-yl)-ureidosulfonyl)-1-methylpyrazole-4-carboxylate [hereinafter referred to as compound (2)]
], ■ Methyl = α(4,6-cymethoxypyrimidin-2-ylcarbamoylsulfamoyl)-〇-toluate [hereinafter referred to as compound (3)], ■ 3-(4,6-dimethoxy-1) ,3.5-triazin-2-yl)-1-(2-(2-methoxyethoxy)
-Phenylsulfonyltourea [hereinafter referred to as compound (4)], ■ N-(2-chloroimidazo-(1,2-a
]pyrimidin-3-ylsulfonyl)-N'(4,6-dimethoxy-2-pyrimidinyl)urea [hereinafter referred to as compound (
5)].

It is related to.

In the present invention, compound (1) is
A known insecticide described in Publication No. 75, in the form of granules,
Even when applied underwater after transplanting paddy rice, it can be expected to maintain its efficacy for a long time.

On the other hand, the compounds represented by compounds (2) to (5) are known sulfonylurea compounds, and are very low-dose herbicides for paddy rice, and can be used alone or as compounds effective against grasshoppers, etc. By using a mixture of these agents, it is possible to control weeds for a long period of time with a single treatment.

The present inventors have developed compound (1) and compounds (2) to (5).
By using a mixed granule with a sulfonylurea compound represented by the formula, or a mixed granule containing these compounds and a compound effective against grasshoppers, major paddy rice plants can be killed with a single application of pesticide granules. The present invention was completed by discovering that it is possible to control pests and paddy field weeds for a long period of time at the same time as pest control.

In the present invention, the ship name of compound (2) is pyrazosulfuron ethyl, the ship name of compound (3) is hahensulfuron methyl, and the ship name of compound (4) is dinosulfuron,
The test name of compound (5) is TH-913.

In addition, effective drugs for noviet, etc. include, for example, Viraplate (-ship name), Viradixifene (-ship name), Penzofenap (-ship name), Daimron [-ship name), Bromobutide (-ship name), Nabroanilide. (-ship name), Kuromeprop (-ship name) (test name is MY-15), GNP
(-ship name), clomethoxynil (-ship name), bifenox (-ship name), oxacyacin (-ship name), mefenacet (-ship name), butachlor (-ship name), pretilachlor (-ship name), butachlor ( - ship name) (test name is KH-218), dithiopyr (- ship name) (test name is MON-72), penfresade (- ship name) (test name is NS-112), pyributicarb (- ship name) ( The test names are TSH-888), bentiocarb (-ship name), dimepiperate (-ship name), nisprocarb (-Ml <
-E-! J Nate (-ship name), ptamiphos (-ship name), quinclorac (-ship name), synmethrine (-ship name), cymetrine (-ship name), 5AP (-ship name), dimethamethrine (-ship name) , 2'3' -dichloro-4
-Ethoxymethoxybenzarinide (test name is HW-5
2>, 1-(2-chlorobenzyl)-3-(α,α-dimethylbenzyl)urea (test name is JC-940), N-
[2”-(3′-methoxy)-thienylmethylgoN
-Chloroaceto-2°6-dimethylanilide (test name: N5K-850) and the like.

The ratio of compound (1) and compounds (2) to (5) in the present invention can be appropriately selected within a range that does not substantially impair the performance of each agent.

For example, the ratio of compound (1) to 1 part by weight of compounds (2) to (5) is 1 to 100 parts by weight, more preferably 3 to 30 parts by weight.

In addition to the above-mentioned compounds, the above-mentioned compounds that are effective against noviae and the like can be appropriately mixed.

In order to prepare the pest control granules of the present invention containing the above-mentioned active ingredient compounds, various auxiliary agents can be further included, and the preparations can be carried out according to known methods.

Examples of the auxiliary agents include solid carriers and surfactants.

Specific examples of the solid carrier include kaolinite, montmorillonite, diatomaceous earth, bentonite, talc, clay, calcium carbonate, calcium sulfate, ammonium sulfate, etc., and specific examples of the surfactant include alkylbenzene sulfonate, polyoxy Examples include ethylene alkyl allyl ether, lignin sulfonate, alkyl sulfosuccinate, polyoxyethylene fatty acid ester, naphthalene sulfonate, polyoxyethylene alkyl allyl ether sulfate, alkyl amine salt, and tripolyphosphate.

The content of these surfactants is not particularly determined, but is usually 0.0 parts by weight per 100 parts by weight of the granules of the present invention.
A range of 5 to 20 parts by weight is desirable.

Furthermore, if necessary, the granules of the present invention may contain a decomposition inhibitor such as epoxidized soybean oil.

Next, formulation examples of the granules of the present invention will be specifically described, but the present invention is not limited thereto.

In addition, the following parts mean parts by weight.

(Hereinafter, blank space) R1'' Compound (1) 1 part Compound (2) 0.07 part DB
SN 3-part epoxidized soybean oil ---1-・--------
1・---1 part bentonite -----------・
−−−−−−−−30 parts talc −・−
−−−〜−−−−−・−−−−64.93 parts or more are uniformly mixed and pulverized, a small amount of water is added and stirred, granulated with an extrusion granulator, and dried after granulation. Granules were obtained.

Note that the above DBSN means sodium dodecylbenzenesulfonate, and the same applies to the following formulation examples.

(Hereafter, blank space) Kaiji 1a Motion i Compound (1) −・・−−−−−・−−−−−1−−−・・−1 part compound (2) ・ −・−
11111 ~ 0.07 part mefena set -・
−・−１−−−−・−・・−−−１−−・−3,5 part D
BSN −・−・−・・−・−3 parts epoxidized soybean oil −・−・−・−・−・・・−・−・−・−
Engineering department bentonite −・・−−−−1−・・−
・・−・・−30 parts talc −・−・・−
・・・・・−−−−−−61.43 parts or more are mixed and pulverized uniformly, a small amount of water is added and stirred, granulated with an extrusion granulator, and after granulation, dried to form granules. Obtained.

L gold 1 rich main compound (1) ・−−11−−−−−−−・−
・−・−・−1 part compound (,2) −−−−−
−−−−−−−−−・・・−・−0,07 parts Quinclorac ・−・−・・−−−1−−−−−・−−−−
1・-0,9 parts pretilachlor −・・−・−・−・
−−−−−−−−1, 5th copy DBSN −・・−・−
・−・−・−・−・ 3-part epoxidized soybean oil ・−=−
・・−・−−−−−−−1−・ 1 part bentonite ・・−−−1−−−−・−−−−−−−−
−・−30 parts talc ・−−−−−−m−
・------------------ Mix and pulverize 62,53 parts or more uniformly, add a small amount of water and stir, granulate with an extrusion granulator, and dry after granulating. Granules were obtained.

L total 1 compound (1) −・−−1−−−−−−−−・−
-------- Part 1 compound (3) -------
−−−−−−・−・−・−0.17 part mefena set
・−−−−−−−−−−−−−−−−−−3,5 part Daimron −−−−−−−−・−−−−−−−−
-----1, 5th copy DB SN, -----・・---
−−−−−−−−−−−−3-part epoxidized soybean oil −
・−−−−−−−−−−−−−−1 part bentonite
−・−−−−1−−・−−−−m−・−−30 parts talc −・−−−−−・−・−・−, −59
, 83 parts or more were uniformly mixed and pulverized, a small amount of water was added and stirred, granulated using an extrusion granulator, and after granulation, the mixture was dried to obtain granules.

(Hereinafter, blank space) Compound (1) 1 part Compound (4) 0.15 parts Quinclorac
−−−−−・0.7 part pretilachlor −
−−−−−−−−−・−1−−−−−−1 part DBSN
−−−−−−−−−−−−−−−−−−−−3
Partially epoxidized soybean oil −・−・・−・−・−・−−−−
−−−1 part bentonite −−−−−−−−−−−
−−−−・−・・−30 parts talc −−−
−−−−−・−・−・−・−・・・・・63゜Mix or more of 15 parts uniformly, mix and pulverize, add a small amount of water and stir, granulate with an extrusion granulator, and granulate. After drying, granules were obtained.

(Hereinafter, blank space) Compound (1) 1 part Compound (5) 0.3 part Kincrorank 1 part Daimron 5 parts DBSN
3-part epoxidized soybean oil
1 part bentonite −−−−−−−−−−−−−
−−−−30 parts talc −−−−−−・−
・−・・−・・−・−−−−−−−58.7 parts or more are uniformly mixed and pulverized, a small amount of water is added and stirred, granulated with an extrusion machine, and dried after granulation. Granules were obtained.

Next, using the granules of the present invention obtained in Formulation Example 1 to Formulation Example 6, an insecticidal effect test and a herbicidal effect test were conducted.

(Hereinafter, blank space) Young seedlings (2.5 leaves, cultivar Nihonbare) grown in a trial seedling box were cut out using a transplanter, and the young seedlings were filled with paddy soil and plowed. /10,000 are transplanted into a pot.

Seven days after transplantation, the granules prepared in Formulation Examples 1 to 6 were applied to the water surface in an amount of 300 g per area.

Seven and 21 days after chemical treatment, polyethylene cylinders were erected on rice plants growing in pots, and 10 adult black leafhoppers and adult brown planthoppers, which are resistant to organic phosphorus agents and carbamate agents, were released into each pot, and the mortality rate was determined after 48 hours. investigated.

The results are shown in Tables 1 and 2.

(Hereinafter, blank spaces) Table 1 Mortality rate of black leafhopper (%) Mortality rate after 48 hours of applied granules (300 g/7-l) 7 days after treatment 21 days after treatment Formulation Example 10 Granule Formulation Example 2 Granule formulation Example 3 Granule formulation Example 4 Granule formulation Example 5 Granule formulation Example 6 Granule untreated area Table 2 00 00 00 00 00 00 00 00 00 00 00 00 Mortality rate of flying planthopper (%) Application of granules 300 g/7-L Blend of Example 1 Granules Blend of Example 2 Granules Blend of Example 3 Granules Blend of Example 4 Granules Blend of Example 5 Granules Formulation Example 60 Mortality rate (%) of adults after 48 hours in granule-free area 7 days after treatment 21 days after treatment 00 00 Oo 00 00 00 00 00 00 00 00 00 Trial m 115000 Earl's Wagnerbot was filled with paddy soil , After plowing, we sowed wild grass, firefly, Japanese cypress, and Kikashigusa, and placed the tubers of Urikawa and Mizugaya cypress.

Then, two paddy rice seedlings similar to those in Test Example 1 were planted per pot and grown in a greenhouse.

7 days after transplantation, apply 3 of the formulation examples 1 to 6 per 1 are.
It was applied in an amount of 0.00 g.

On the 28th day after treatment, the effects on each weed and paddy rice were evaluated according to the following criteria.

Judgment Criterion 5: Complete death or 90% or more suppression 4: 7
0-90% inhibition 3: 40-70% inhibition 2: 20-40% inhibition: 5-20% inhibition 0: 5% or less inhibition The degree of inhibition was determined from visual observation.

The results are shown in Table 3.

Table 3 Weeding effect and impact on paddy rice Granules of Formulation Example 1 Granules of Formulation Example 2 Formulation Example 30 Granules Granules of Formulation Example 4 Granules of Formulation Example 5 Granules of Formulation Example 6 Untreated area 0

Claims (3)

[Claims] (1) 1-(6-chloro-3-pyridylmethyl)-N-
A granule for pest control containing nitroimidazolidin-2-ylideneamine and one or more sulfonylurea compounds as active ingredients. (2) A granule for paddy fields containing the active ingredient according to claim 1 and one or more types of herbicide active ingredients effective against grasshoppers, etc. as active ingredients. (3) The granules for controlling pests according to claim 1, wherein the sulfonylurea compound is any of the following four types of compounds. [1] Ethyl-5-[3-(4,6-dimethoxypyrimidin-2-yl)-ureidosulfonyl]-1-methylpyrazole-4-carboxylate, [2] Methyl α(4,6-dimethoxypyrimidine) -2
-ylcarbamoylsulfamoyl)-0-toluate, [3]3-(4,6-dimethoxy-1,3,5-triazin-2-yl)-1-[2-(2-methoxyethoxy)-phenyl [4]N-(2-chloroimidazo-[1,2-a]pyridin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea.