Summary of the invention
The purpose of this invention is to provide a kind of composite biological agricultural chemical, technical problem to be solved be make that this agricultural chemicals becomes efficiently, compounded pesticides that low toxicity, wide spectrum, insect are difficult for producing resistance.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of composite biological agricultural chemical, its technical scheme is by bacillus thuringiensis,Bt for it, Celastrus angulatus and emulsifier, moistening spreader-sticker, preservative, synergist, the uv-protection agent, pH value conditioning agent, the composite insecticidal suspension emulsion that antifreezing agent and water form through processing (water slurry processing method routinely), wherein bacillus thuringiensis,Bt content is 1000~10000PxIU/ milligram in this desinsection suspension emulsion, the percentage by weight of other component is a Celastrus angulatus 0.1~5.0%, emulsifier 5.0~15.0%, moistening spreader-sticker 0.5~5.0%, preservative 0.01~5.0%, synergist 0.1~5.0%, uv-protection agent 0.1~10.0%, pH value conditioning agent 0.01~5.0%, antifreezing agent 5.0~10.0%, surplus are water; Described emulsifier component is to be selected from OP-10,0201,0203,1602, peaceful breast 34
#In one or more, described moistening spreader-sticker component is to be selected from anhydrous sorbitol polyoxyethylene ether fatty ester (tween series), lauryl sodium sulfate, in the neopelex one or more, described preservative component is to be selected from methyl hydroxybenzoate, Sodium Benzoate, in the triumphant pine one or more, described boosting components is to be selected from potash, sodium chloride, edetate disodium, oleic acid, sucrose, honey element, in the saccharin sodium one or more, described uv-protection agent component is to be selected from sodium lignin sulfonate, p-aminobenzoic acid, in the sorbierite one or more, described pH value conditioning agent component is to be selected from hydrochloric acid, citric acid, oxalic acid, in the acetic acid one or more, described antifreezing agent component is to be selected from ethylene glycol, polyethylene glycol, in the glycerine one or more.
In the technique scheme, the best proportioning of its component is bacillus thuringiensis,Bt 3000~6000PxIU/ milligram, Celastrus angulatus 1.0~2.0%, emulsifier 8.0~10.0%, moistening spreader-sticker 2.5~4.0%, preservative 1.0~2.0%, synergist 1.5~3.0%, uv-protection agent 1.0~3.0%, pH value conditioning agent 0.1~3.0%, antifreezing agent 5.0~8.0%, and surplus is a water.Emulsifier component is with 0201 and peaceful newborn 34
#Composition be best.Moistening spreader-sticker component is the best with the composition of anhydrous sorbitol polyoxyethylene ether fatty ester and lauryl sodium sulfate.Preservative component is the best with the composition of methyl hydroxybenzoate and Kai Song.Boosting components is with potash, the composition of edetate disodium, oleic acid and honey element is the best.Uv-protection agent component is best with the sodium lignin sulfonate.PH value conditioning agent component is best with the citric acid.The antifreezing agent component is best with ethylene glycol.
Bacillus thuringiensis,Bt (Bacillus thuringiensis) is a kind of bacillary insecticide, (after insect eats medicament, in midgut, makes enteron aisle anesthesia, stops to get food because its unique insecticidal mechanism; And destroy the enteron aisle inner membrance, and the bacillus gemma is sprouted in intestines, a large amount of breeding, finally make insect hungry and septicemia appears and extremely) and low toxicity, nothing " three cause harm ", to characteristics such as natural enemies securities, be widely used in the control of lepidoptera pest.But the repeated drug taking of its short time easily causes the enhancing of pest resistance to insecticide, has also increased the control cost simultaneously.Celastrus angulatus (celangulin) is a kind of plant insecticide, also is a kind of low toxicity, nothing " three cause harm ", to the biopesticide of natural enemies security, and main insecticidal mechanism is after insect eats medicament, causes polypide anesthesia, food refusal, causes insect hungry and dead.Be mainly used in agricultural insect management.But the result of the test of field control cabbage caterpillar shows, eat this medicament of less dosage when insect after, after polypide anesthesia, food refusal a couple of days, still can revive, continue to harm the crops.Especially to some at advanced age pest controling effect not ideal.
Complex preparation provided by the present invention has effectively overcome the deficiency of the single use of above-mentioned preparation, has following advantage:
1, two kinds of insecticidal active ingredients among the present invention have good synergistic effect, and its co-toxicity coefficient is 260~300.Test shows, after insect eats composite drug, causes polypide anesthesia, food refusal; Bacillus thuringiensis,Bt in the enteron aisle is destroyed the enteron aisle inner membrance simultaneously, makes insect dead in the anesthesia process.Even if insect eats the medicament of less dosage, polypide soon also can be dead under dual efficacy of a drug effect.Effectively overcome the relatively poor deficiency of the single result of use of Celastrus angulatus.
2, the present invention is the compound formulation of bacillus thuringiensis,Bt and Celastrus angulatus, and its efficient, low toxicity had both kept the biopesticide characteristic, had widened the scope of application of single medicament again, had improved drug effect, and was particularly particularly remarkable to vegetable-crop pest-insect diamond-back moth control efficiency.(consumption of key component is: bacillus thuringiensis,Bt 2000PxIU/ milligram+20 micrograms Celastrus angulatus/milligram suspension emulsion) dilution is 1000 times for compound formulation of the present invention, control efficiency to diamond-back moth all is stabilized in 85~95%, apparently higher than above-mentioned both unitary agents.Below be the control efficiency of several preparations, see Table 1 diamond-back moth.
Several preparations of table 1 are to the control efficiency of diamond-back moth
| Reagent agent | Extension rate | Control efficiency (three days) | Control efficiency (five days) | Control efficiency (seven days) |
| Bacillus thuringiensis,Bt 2000PxIU/ milligram+20 micrograms Celastrus angulatus/milligram | ????1000 | ???88.72% | ????93.25% | ????95.22% |
| Bacillus thuringiensis,Bt 2000PxIU/ milligram | ????1000 | ???83.74% | ????88.29% | ????91.56% |
| Bacillus thuringiensis,Bt 4000PxIU/ milligram | ????1000 | ???88.62% | ????91.70% | ????93.22% |
| 20 micrograms Celastrus angulatus/milligram | ????1000 | ???75.66% | ????85.91% | ????88.09% |
| 40 micrograms Celastrus angulatus/milligram | ????1000 | ???88.87% | ????87.78% | ????90.03% |
| Ck (clear water) | ?????- | ?????- | ??????- | ??????- |
3, be difficult for making insect to develop immunity to drugs.Because this composite biological pesticide is made up of the insecticide of the different insecticidal mechanisms of two classes, and be natural insecticidal constituent, so be difficult to make insect that it is developed immunity to drugs, even organic phosphor, organochlorine, pyrethroid, carbamate and other have been produced the insect of resistance, this composite biological pesticide still has the effect of killing.
In sum, the various insecticidal constituents in the compound bio insecticide of the present invention in use can be worked in coordination with and be played a role, and have remedied self deficiency of single agent agricultural chemicals.Characteristics such as it has efficiently, low toxicity, wide spectrum, opposing risk are particularly suited for control and have produced serious drug-fast multiclass insect.
Embodiment
Embodiment one: prepare 1000 kilograms of 4000PxIU/ milligram bacillus thuringiensis,Bt 15 micrograms Celastrus angulatus/milligram suspension emulsions.
Raw material (all being the commercial goods) proportioning
Bacillus thuringiensis,Bt 4000PxIU/ milligram (being 4000IU/ milligram (diamond-back moth))
Celastrus angulatus 1.5% (weight)
0201, peaceful breast 34
#Composition 8.0% (weight)
Lauryl sodium sulfate 3.5% (weight)
Triumphant loose 1.2% (weight)
Potash, honey element composition 1.8% (weight)
Sodium lignin sulfonate 2.0% (weight)
Citric acid 0.5% (weight)
Ethylene glycol 6.0% (weight)
Water surplus.
Get by 0201, peaceful newborn 34 of said ratio
#80 kilograms of compositions, 35 kilograms of lauryl sodium sulfate, triumphant loose 12 kilograms, 18 kilograms of potash, honey element compositions, 20 kilograms of sodium lignin sulfonates, 5 kilograms of citric acids, 60 kilograms of ethylene glycol; Put it in the reactor that fills 650 kg water, stirring makes its dissolving evenly (can utilize heating to improve dissolution velocity), reduce to normal temperature, add 20 kilograms in the former powder of 75% Celastrus angulatus, toxicity evaluation is the former powder double centner of bacillus thuringiensis,Bt of 40000PxIU/ milligram; Water slurry processing method routinely, promptly under normal temperature condition that above-mentioned mixed liquor shear agitation, grinding (passing through colloid mill) is even, make its fineness reach 150 μ m more than 98%, can obtain 1000 kilograms of 4000PxIU/ milligram bacillus thuringiensis,Bt 15 micrograms Celastrus angulatus/milligram suspension emulsions.
Embodiment two: prepare 1000 kilograms of 2000PxIU/ milligram bacillus thuringiensis,Bt 20 micrograms Celastrus angulatus/milligram suspension emulsions.
The raw material proportioning
Bacillus thuringiensis,Bt 2000PxIIU/ milligram (being 2000IU/ milligram (diamond-back moth))
Celastrus angulatus 2.0% (weight)
0201, peaceful breast 34
#Composition 10.0% (weight)
Tween-80 5.5% (weight)
The composition 1.0% (weight) of methyl hydroxybenzoate, triumphant pine
Potash, honey element composition 1.5% (weight)
Sodium lignin sulfonate 1.0% (weight)
Citric acid 0.8% (weight)
Ethylene glycol 5.0% (weight)
Water surplus.
Get by 0201, peaceful newborn 34 of said ratio
#The composition double centner, 55 kilograms of Tween-80s, 10 kilograms of the compositions of methyl hydroxybenzoate, triumphant pine, 15 kilograms of potash, honey element compositions, 10 kilograms of sodium lignin sulfonates, 8 kilograms of citric acids, 50 kilograms of ethylene glycol; Put it in the reactor that fills 675.3 kg water, stirring makes its dissolving evenly (can utilize heating to improve dissolution velocity), reduce to normal temperature, add 26.7 kilograms in the former powder of 75% Celastrus angulatus, toxicity evaluation and be 50 kilograms in the former powder of bacillus thuringiensis,Bt of 40000PxIU/ milligram; Water slurry processing method routinely, promptly under normal temperature condition that above-mentioned mixed liquor shear agitation, grinding (passing through colloid mill) is even, make its fineness reach 150 μ m more than 98%, can obtain 1000 kilograms of 2000PxIU/ milligram bacillus thuringiensis,Bt 20 micrograms Celastrus angulatus/milligram suspension emulsions.
The key technical indexes of preparation of the present invention (product) sees Table 2.
The key technical indexes of table 2 preparation of the present invention
| Project | Index |
| Bacillus thuringiensis,Bt (toxicity evaluation (PxIU/ milligram)) is annotated: Px is the abbreviation of diamond-back moth (plutella xylostella) | ??2000~10000 |
| Bitter skin Teng Su, % | ???0.1~5.0 |
| PH value scope | ???6.0~6.5 |
| Fineness (150 μ m), % 〉= | ??????98 |
| Suspensibility, % 〉= | ??????80 |
800~1500 times of liquid with above preparation are used to prevent and treat crop pests, as: cabbage caterpillar, diamond-back moth, resistant bollworm all can play good control efficiency.