CN102047908A - Chlorantraniliprole and quintiofos compound pesticide - Google Patents

Abstract

The invention provides a chlorantraniliprole and quintiofos compound pesticide, belonging to the technical field of compound pesticides. The pesticide is characterized by comprising the following substances in percentage by weight: 0.7 to 2.0 percent of chlorantraniliprole, and 16.0 to 19.3 percent of quintiofos. The compound pesticide has the co-toxicity coefficient on cnaphalocrocis medinalis more than 120, has remarkable synergic effect, and has good control and prevention effect on striped rice borer, cnaphalocrocis medinalis, and other rice Lepidoptera pests. The compound pesticide has wide poisoning and insecticidal spectrum, good quick action and persistence and low production cost which is reduced by 50 percent compared with that of the pesticide singly using the chlorantraniliprole.

Description

Rynaxypyr and quinalphos Recompounded pesticide

Technical field

The invention belongs to technical field of compounded pesticide, be specially Rynaxypyr and quinalphos Recompounded pesticide.

Background technology

Paddy rice is the principal item in China cereal crops, and cultivated area is big, and disease, worm, crop smothering kind are many, and harm is heavy.According to agricultural sector statistics, every year due to illness, harm such as worm, grass, production loss reaches 20～30%.The employed agricultural chemicals quantity of disease, worm, crop smothering on the control paddy rice accounts for about 50% of China's agricultural chemicals year usage amount.Area is controlled to the medicine of rice grub in the whole nation, and about 1,200,000,000 mu, insect outbreak year medicine is controlled area can be bigger throughout the year.

The pesticide species of control paddy rice primary pest for many years, uses the desinsection list as the control rice leaf roller, and chlopyrifos is more, nearly 3～5 years, uses medicaments such as Avermectin, Affirm (Merck Co.) hydrochloride.Large area control to rice leaf roller has reached good effect, but owing to develop immunity to drugs after using for many years, control efficiency descends year by year.In recent years introduce medicaments such as indenes worm prestige that du pont company produces, Rynaxypyr, the lepidoptera pest on the control paddy rice, dosage is few, and preventive effect is good, but the pesticide price height, large tracts of land is promoted the use of also certain difficulty.And for example prevent and treat the snout moth's larva of rice, rice-stem borer especially, once large tracts of land is used agricultural chemicals such as desinsection list, dimehypo, Hostathion, and all because of pesticide resistance produces, preventive effect descends.After use the relevant agricultural chemicals of fluorine worm nitrile (sharp strength spy) that Bayer A.G produces and insect hormone class such as flufenoxuron etc. instead, all because of bigger to the influence of useful aquatic animals such as fish, shrimp, honeybee and insect, order to stop using on rice crop in the Ministry of Agriculture in 2009, medicament uses so that cause the control snout moth's larva of rice not have preferably.In recent years promote medicaments such as Rynaxypyr, also higher because of price above-mentioned, use and be difficult to large tracts of land.

Rynaxypyr, (Chlorantraniliprole, the registrar entitling: it is wide Rynaxypyr) to have another name called health for English common name.Be a kind of aminobenzoic two acyl insecticides that du pont company is produced in recent years and promoted.Pure product outward appearance is a white crystals, proportion (liquid is required) 1.507g/ml, 208～210 ℃ of fusing points.330 ℃ of decomposition temperatures, vapour pressure (20～25 ℃) 6.3 * 1012pa, solvability (20～25 ℃ of g/ml): water 1.023, acetone 3.446, methyl alcohol 1.714, acetonitrile 0.711, acetate, ethyl ester 1.144.Rynaxypyr has unique insecticidal mechanism, can efficiently activate insect ryania (muscle) acceptor.Excessively discharge the calcium ion in the intracellular calcium store, cause the insect paralysis dead.Active high to the larva of lepidoptera pest, insecticidal spectrum is wide, holds the characteristics such as good of imitating.Rynaxypyr at present registered on the paddy rice primary pest as rice leaf roller, striped rice borer, paddy stem borer, pink rice borer, rice gall midge, Lissorhoptrus oryzophilus Kuschel, rice water resembled good control efficiency also arranged.This agricultural chemicals belongs to little poison level, and is also as safe as a house to the useful insect in rice field, fish, shrimp.

Quinalphos (Quinalphos) has another name called diethquinalphione, quinoline is disliked sulphur phosphorus, Quinalphos, SRA7312.Chemical name is O, O-diethyl-O-(diethquinalphione) thiophosphate, quinalphos in the time of 24 ℃ in the water solvability be 22mg/L.Be dissolved in organic solvents such as toluene, dimethylbenzene, ether, ethyl acetate, acetone, acetonitrile, methyl alcohol, ethanol, poor heat resistance is met sour facile hydrolysis.Quinalphos is tagged so that insect is had, stomach poison function, and to lepidoptera pest, mite, a red-spotted lizard class have the better prevention effect.Rice gall midge there is special efficacy.In China certain scale production being arranged, is main from India's import mainly.

In order to improve China to the relevant pesticide species of large-scale production control efficiency to rice grub, reduce and introduce the market price of pesticide species preferably recently, reduction is to the pollution of environment, if adopt the lower-cost agricultural chemicals of now using,, carry out reasonably composite with Rynaxypyr as pesticide species such as quinalphos, through screening test, the tangible composition of selective advance strengthens quick-acting, and reducing pesticide cost is the key of Recompounded pesticide.

Summary of the invention

At the above-mentioned problems in the prior art, the objective of the invention is to design provides the wider Rynaxypyr of a kind of poisoning, insecticidal spectrum and the technical scheme of quinalphos Recompounded pesticide, both are composite to have obvious synergistic effect, and effect property, lasting effect are good, production cost is low, and is good to the control efficiency of paddy rice lepidoptera pest.

Described Rynaxypyr and quinalphos Recompounded pesticide is characterized in that containing the following material of weight percentage: Rynaxypyr 0.7～2.0%, quinalphos 16.0～19.3%.

Described Rynaxypyr and quinalphos Recompounded pesticide, the weight percentage that it is characterized in that chlorine worm formamide is 0.8～1.8%, the weight percentage of quinalphos is 18.2～19.1%.

Described Rynaxypyr and quinalphos Recompounded pesticide, the weight percentage that it is characterized in that chlorine worm formamide is 0.9～1.2%, the weight percentage of quinalphos is 18.5～19.0%.

Described Rynaxypyr and quinalphos Recompounded pesticide, according to its purposes, can process multiple formulation such as colloidal suspending agent, add diffusant, wetting agent, binding agent, filler etc. by former medicine and make, water dispersant adds bleeding agent, diffusant, wetting agent, binding agent, filler etc. by former medicine and makes.The production technology that specifically is mixed and usual auxiliaries all belong to existing known technology, do not repeat them here.

Described Rynaxypyr and quinalphos Recompounded pesticide all greater than 120, have synergistic effect preferably to the co-toxicity coefficient of striped rice borer, and be good to the control efficiency of paddy rice lepidoptera pests such as striped rice borer, rice leaf roller.This Recompounded pesticide is poisoned, insecticidal spectrum is wider, and quick-acting and lasting effect are all good, and production cost is low, reduces by 50% than single with the Rynaxypyr price.

Proportioning in the present patent application is the weight percentage of the pure material of active ingredient.

Embodiment

Below the invention will be further described by specific embodiment, and further specify beneficial effect of the present invention in conjunction with corresponding test.

Prescription one: Rynaxypyr 1.8%, quinalphos 18.2%.

Prescription two: Rynaxypyr 1.5%, quinalphos 18.5%.

Prescription three: Rynaxypyr 1.2%, quinalphos 18.8%.

Prescription four: Rynaxypyr 0.9%, quinalphos 19.1%.

Prescription five: Rynaxypyr 0.6%, quinalphos 19.4%.

Test one. above-mentioned Recompounded pesticide is to the proportioning screening of striped rice borer.

1. reagent agent:

1.1 test medicine: Rynaxypyr 96.45% former powder provides (purchasing in du pont company) by Zhejiang Shenghua Biok Biology Co., Ltd.; Quinalphos is provided by Fengcheng insecticide factory for 65% missible oil.

1.2 solvent: Rynaxypyr adopts N.N-dimethyl formamide (D.M.F) to make solvent, adds emulsifier and is configured to 10% missible oil; Quinalphos is also made solvent with D.M.F, and adding emulsifier, to be configured to 65% missible oil standby.

1.3 blank (CK): adopt 3000 times of liquid of D.M.F (33.3mg/L) to make blank.

2. proportion design:

(1) Rynaxypyr

(2) quinalphos

(3) 20% Rynaxypyr quinalphos mixtures (prescription 1)

(4) 20% Rynaxypyr quinalphos mixtures (prescription 2)

(5) 20% Rynaxypyr quinalphos mixtures (prescription 3)

(6) 20% Rynaxypyr quinalphos mixtures (prescription 4)

(7) 20% Rynaxypyr quinalphos mixtures (prescription 5)

3. for the examination insect: striped rice borer 3～4 instar larvaes;

4. test method:, adopt dip method with reference to the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC).

5. The selection result sees Table 1-8.

Table 1 Rynaxypyr is to the test of pesticide effectiveness of striped rice borer 3-4 instar larvae table as a result

Dosage (mg/L)	The examination borer population	Dead borer population	Lethality (%)
				80.0000	40	32	80.0
40.0000	40	28	70.0
				20.0000	40	22	55.0
10.0000	40	16	40.0
				5.0000	40	12	30.0
CK	40	2	5.0

Table 2 quinalphos is to the test of pesticide effectiveness of striped rice borer 3-4 instar larvae table as a result

Dosage (mg/L)	The examination borer population	Dead borer population	Lethality (%)
				200.0000	40	34	85.0
100.0000	40	26	65.0
				50.0000	40	24	60.0
25.0000	40	18	45.0
				12.5000	40	16	40.0
CK	40	6	15.0

Table 3 20% Rynaxypyr quinalphos mixture (prescription 1) is to the test of pesticide effectiveness of striped rice borer 3-4 instar larvae table as a result

Dosage (mg/L)	The examination borer population	Dead borer population	Lethality (%)
				200.0000	40	36	90.0
100.0000	40	32	80.0
				50.0000	40	26	65.0
25.0000	40	20	50.0
				12.5000	40	16	40.0
CK	40	6	15.0

Table 4 20% Rynaxypyr quinalphos mixture (prescription 2) is to the test of pesticide effectiveness of striped rice borer 3-4 instar larvae table as a result

Dosage (mg/L)	The examination borer population	Dead borer population	Lethality (%)
				200.0000	40	36	90.0
100.0000	40	30	75.0
				50.0000	40	22	55.0
25.0000	40	16	40.0
				12.5000	40	12	30.0
CK	40	6	15.0

Table 5 20% Rynaxypyr quinalphos mixture (prescription 3) is to the test of pesticide effectiveness of striped rice borer 3-4 instar larvae table as a result

Dosage (mg/L)	The examination borer population	Dead borer population	Lethality (%)
				200.0000	40	34	85.0

100.0000	40	28	70.0
				50.0000	40	22	55.0
25.0000	40	18	45.0
				12.5000	40	14	35.0
CK	40	6	15.0

Table 6 20% Rynaxypyr quinalphos mixture (prescription 4) is to the test of pesticide effectiveness of striped rice borer 3-4 instar larvae table as a result

Dosage (mg/L)	The examination borer population	Dead borer population	Lethality (%)
				200.0000	40	32	80.0
100.0000	40	26	65.0
				50.0000	40	20	50.0
25.0000	40	16	40.0
				12.5000	40	14	35.0
CK	40	6	15.0

Table 7 20% Rynaxypyr quinalphos mixture (prescription 5) is to the test of pesticide effectiveness of striped rice borer 3-4 instar larvae table as a result

Dosage (mg/L)	The examination borer population	Dead borer population	Lethality (%)
				200.0000	40	28	70.0
100.0000	40	24	60.0
				50.0000	40	20	50.0
25.0000	40	16	40.0
				12.5000	40	10	25.0
CK	40	6	15.0

Table 8 Rynaxypyr quinalphos mixture is to the toxicity test of striped rice borer table as a result

Medicament	LC50（mg/L)	The toxicity regression line	95% confidence interval	Co-toxicity coefficient
					Rynaxypyr	17.3725	y=3.4737+1.2310x	11.415-25.1836	?
Quinalphos	113.504	y=2.5858+1.748x	69.1803-177.4222	?
					20% Rynaxypyr. quinalphos mixture (prescription 1)	32.8764	y=2.7762+1.4660x	20.3132-46.3819	230.5
20% Rynaxypyr. quinalphos mixture (prescription 2)	48.9724	y=1.9615+1.7980x	35.6901-66.8320	163.8
					20% Rynaxypyr. quinalphos mixture (prescription 3)	48.6296	y=2.7097+1.3577x	32.2745-72.4829	175.2
20% Rynaxypyr. quinalphos mixture (prescription 4)	62.4136	y=2.7614+1.2469x	41.2864-105.0145	145.6
					20% Rynaxypyr. quinalphos mixture (prescription 5)	87.1086	y=2.7214+1.1745x	55.9443-190.0330	111.8

Screening test result shows: the prescription 1-4 of 20% Rynaxypyr quinalphos mixture, co-toxicity coefficient have synergistic effect preferably all greater than 120; The co-toxicity coefficient of prescription 5 is less than 120, and synergistic effect is not obvious.From cost and preventive effect, prescription 3 or fill a prescription and 4 can make to optimize proportioning and select.

Test two. above-mentioned Recompounded pesticide is to the field control effectiveness test of rice-stem borer.

Be the control efficiency of checking Rynaxypyr quinalphos mixture to striped rice borer, in by the end of May, 2010 on early rice the withered sheath of striped rice borer peak carried out field control effectiveness test.

1. field reagent kind and consumption:

1.1 test medicine: 200 gram/kilogram Rynaxypyr quinalphos mixed agent missible oil, the 65% quinalphos crude oil autogamy that former powder of 96.45% Rynaxypyr that is provided by distillation Bai Ke Biological Co., Ltd. and Fengcheng, Jiangxi Province insecticide factory provide.

1.2 contrast medicament: 200 gram/kilogram Rynaxypyr colloidal suspending agents are du pont company production, and 200 gram/kilogram quintiofos creams are by the crude oil autogamy.

1.3 consumption:

(1) 20% Rynaxypyr quinalphos mixture (1.0+19.0%) mu consumption 100 grams;

(2) 20% Rynaxypyr colloidal suspending agent mu consumptions 10 grams;

(3) 20% quintiofos cream mu consumptions 100 grams;

(4) blank.

2. method:

Adopt the field sub-district to be set, triplicate.Behind the spray medicine 24 days, when Chilo spp larvae was grown to 5 length of times, when the withered heart seedling of causing harm in the field is basicly stable, adopt parallel jump method sampling, carry out withered heart rate investigation, calculate control efficiency.

3. result of the test sees Table 9.

Result of the test shows: 200 gram/kilogram Rynaxypyr quinalphos mixed agents, and mu restrains with 100, and average withered heart rate is 1.00%, and control efficiency is 95.5%; All the control efficiency than the single agent of two contrasts is good.200 gram/kilogram Rynaxypyr quinalphos mixed agent mus restrain with 100, the content of Rynaxypyr is 1 gram, comparison is 2 grams according to medicament 200 gram/kilogram Rynaxypyr mus with 10 content that restrain, and for this reason, the comparison of mixed agent mu with medicament pesticide cost will reduce by 50% according to medicament.Mixed agent and two single agent applying areas, paddy growth is normal, and no symptom of chemical damage takes place.1-4 carries out the field control effectiveness test of striped rice borer with prescription, also can reach and the similar test effect of 20% Rynaxypyr quinalphos mixture (1.0+19.0%).

Test three. above-mentioned Recompounded pesticide is to the field control effectiveness test of paddy rice rice leaf roller.

1. field reagent kind and consumption:

1.1 test medicine: the former powder of 96.45% Rynaxypyr by du pont company provide, 65% quintiofos cream provides by the rich pesticide chemical of Jiangxi fringe Co., Ltd.From being made into 20% Rynaxypyr quinalphos mixed agent.

1.2 contrast medicament: the former medicine autogamy that 20% Rynaxypyr suspending agent and 25% quintiofos cream are provided by above-mentioned producer.

1.3 consumption:

(1) 20% Rynaxypyr quinalphos mixture (prescription 4) mu consumption 100 grams;

(2) 20% Rynaxypyr suspending agent mu consumptions 10 grams;

(3) 25% quintiofos cream mu consumptions 100 grams;

(4) blank

2. method: adopt the field sub-district to be set, triplicate.Before medication and after the medication 7 days, 20 clumps of parallel great-jump-forward water intaking rice were adopted in every sub-district, win leaf roll in bag.Look into larva number alive at indoor counting leaf roll number and stripping, calculate leaf roll rate and control efficiency and live worm increase and decrease percentage.

3. result of the test sees Table 10.

Result of the test shows: 20% Rynaxypyr quinalphos mixed agent (prescription 4), and mu restrains with 100, and the control efficiency of 7 days control rice leaf roller is 80.4% behind the medicine, and the worm that lives does not have increase and decrease.Single agent 20% Rynaxypyr mu of assembly restrains with 100 with 10 grams, leaf roll control efficiency 94.5%, 25% quinalphos mu, and the leaf roll control efficiency is 57.9%.4 leaf roll control efficiency and the larva rate that goes down of filling a prescription contrasts between the medicaments between two.After mixed agent and the dispenser of contrast medicament, paddy growth is normal, and no symptom of chemical damage takes place.1-3 carries out the field control effectiveness test of paddy rice rice leaf roller with prescription, also can reach and the 4 similar test effects of filling a prescription.

Claims (3)

1. Rynaxypyr and quinalphos Recompounded pesticide is characterized in that containing the following material of weight percentage: Rynaxypyr 0.7～2.0%, quinalphos 16.0～19.3%.

2. Rynaxypyr as claimed in claim 1 and quinalphos Recompounded pesticide, the content that it is characterized in that chlorine worm formamide is 0.8～1.8%, the content of quinalphos is 18.2～19.1%.

3. Rynaxypyr as claimed in claim 1 and quinalphos Recompounded pesticide, the content that it is characterized in that chlorine worm formamide is 0.9～1.2%, the content of quinalphos is 18.5～19.0%.