If the black-headed type of the American white moth is further spread to the southern provinces of China, its damage degree may be weaker than its harm in northern China. If the red-head type is introduced into China, especially in the south, it may cause more serious harm.
Methoxyfenozide
In recent years, Shandong Ruida Pest Control and Prevention Research Institute and the Forest Pest Control and Quarantine Station of Zhangzhou City, Jiangsu Province jointly conducted the indoor screening and field flight defense test of the American white moth in Cangzhou City, and tested the quality of the flying anti-spray.
The indoor test results showed that the prevention and treatment of 24% of the larvae of the white moth larvae of the larvae of the white moth larvae of 24% of the methicillin suspension, 1500 times of the 10% chlorfenapyr suspension, and the 3,000 times of the suspension of the 20% chlorfenapyr suspension The effects were 100%, 48.3%, and 83.2%, respectively.
The results of field flight control test showed that the control effect of the four agents on the control of the larvae of the American white moth larvae was more than 99%, and 24% of the methoxyfenozide suspension had higher target selectivity and quick-acting effect. Preferably, it has excellent killing effect on larvae above 3 years old; 10% chlorfenapyr suspension + 20% chlorfenapyr suspension has strong knockdown characteristics; 25% chlorfenapyr suspension + 20% efficient The cyhalothrin emulsifiable concentrate has a better killing effect, but the killing property is stronger and the target selectivity is poor; 25% chlorfenapyr suspension + 5.7% carbaryl salt microemulsion is less effective for larvae above 3 years old.
In summary, the researchers recommended the use of methoxyfenozide in the prevention and treatment of white moths in the United States. If considering the cost of medication, it is recommended to use a combination of tebufenozide and chlorfenapyr.
Thiacloprid
Researchers from the Department of Food and Environmental Engineering of Luzhou Vocational and Technical College of Anhui Province used different concentrations of 3% thiacloprid microcapsule suspension to test the field efficacy of 1-5 instar larvae of the American white moth.
The results showed that when the 3% thiacloprid microcapsule suspension was diluted 1000 times, the control effect on the 4-5 instar larvae of the American white moth was 92.11%; compared with the common control agents, vitamin A and chlorpyrifos, quick-acting Strong, and the control effect is up to 2 months.
The researchers suggest that 3% thiacloprid microcapsule suspension can be used in production to replace some of the drug-resistant agents to control the American white moth.
Urea urea
Researchers at the Forest Pest Control Station of the State Forestry Administration conducted a test on the control of the American white moth using 10% guanidine urea suspending agent in Huludao City and Yingkou City, Liaoning Province.
The results showed that the control effect of 10% guanidine urea suspending agent with active ingredient content of 50, 100, 150 mg/kg on the white moth was over 98.8%, and the content of active ingredients was different between the two test sites. There was no significant difference in the control effect between the two groups; however, it was significantly better than the control agent with 25% chlorfenapyr suspension active ingredient content of 125 mg/kg.
The researchers suggest that the US white moth can be controlled by a 10% guanidine urea suspending agent with an active ingredient content of 50 mg/kg.
Chlorantraniliprole
In order to clarify the most suitable dosage and best prevention and treatment age of 20% chlorantraniliprole suspending agent for controlling larvae of the American white moth, the researchers of the State Forestry Administration's Forest Pest Control Station jointly carried out the helicopter ultra-low volume spray prevention test.
The results showed that 20% chlorantraniliprole suspending agent had better quick-acting effect and longer duration of effect on 2-3 instar larvae of the American white moth. Under the dosages of 120 mL/hm2 and 150 mL/hm2, the infestation rate of the 2nd instar larvae of the American white moth was 96.5% and 100% respectively after 2 days of application; the 3rd instar larvae were 97.5% and 99.0 respectively after 4 days of application. %; 4th and 5th instar larvae were 77.8%, 83.1%, 99.8%, 77.9% after 6 days of application, and reached 100% 7 days after application; 5th instar larvae were administered 8 days after application, and insects were released 7 days later. The reduction rate is still around 80%. At 90 mL/hm2, 7 days after application, the infestation rate of only 2nd instar larvae reached 100%, the infestation rate of 3rd instar larvae was 68.6%, and the inferiority rate of 4th and 5th instar larvae was only about 40%.
The researchers believe that the most suitable dosage for aerial spray 20% chlorantraniliprole suspension to control the larvae of the American white moth is 120-150 mL/hm2, with a duration of up to 15 days, and the best control period is 2-3. age.
The American white moth is distributed in the southern part of Canada from northern Canada to northern Mexico, and has blackhead and redhead types. Researchers at the College of Forestry, Shenyang Agricultural University, found that the black-headed distribution dominated the humid continental climate zone in the central and eastern parts of the United States. In the subtropical humid climate zone, the red-headed type dominated the blackhead. The distribution ratio of the type shows a trend of high north and low south, and the red head type is just the opposite. Among the five ecological provinces involved in the survey, the continental temperate broad-leaved forest is more suitable for blackhead survival, and the mixed forest in the southeast is more suitable for redhead survival. .
Based on the larval morphology, net curtain structure, geographical distribution and host preference, the black-headed and red-headed species of the American white moth have large differences. The researchers put forward hypothesis on the prevention and control of the American white moth: if the black-headed type of the American white moth is further spread To the southern provinces of China, the degree of harm may be weaker than its harm in northern China. If the red-head type is introduced into China, especially in the south, it may cause more serious harm. Therefore, quarantine should be strengthened and the red-headed type of American white moth should be strictly controlled.
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Product Introduction
CAS: 29385-43-1
Water Treatment Chemical Corrosion Inhibitor Tolyltriazole TTA is white granule or powder, TTA is a mixture of 4-methyl-benzotriazole and 5-methyl-benzotriazole, the melting point is from 80℃ to 86℃, soluble in alcohol, benzene, toluene and chloroform, and hardly soluble in water.
Application:
TTA is a kind of Water Treatment Material , mainly used as antirust and Corrosion Inhibitor for metals (such as silver, copper, zinc, lead, nickel, etc..), and for antirust oil (tallow) products, the gas phase corrosion inhibitor of copper, Lubricant Additive , cycle water treating compound and auto antifreeze. TTA also can be concernedly used with manifold sterilization algaecide and has a very fine corrosion mitigation effect on close cycle cooling water system. It can used together with DBNPA 2,2 Dibromo 3 Nitrilopropionamide, Isothiazolinones Bactericide, Polyaluminum Chloride PAC and PAM Polyacrylamide Flocculant.
Specifications:
|
Items |
Index |
|
Appearance |
White or light yellow granular |
|
Content, % |
99.5 min |
|
Moisture, % |
0.2 max |
|
Melting point, ℃ |
80.0-86.0 |
|
Ash content, % |
0.05 max |
|
Colour (Hazen) |
45 max |
|
PH |
5.5-6.5 |
Package and Storage:
25Kg/bag or customers' requirement.
Easy to wet, please put in aeration, dryness place, do not mix it with food and seed.
TTA Tolyltriazole
Corrosion Inhibitor Tolyltriazole,Tta Tolyltriazole,Water Treatment Chemical Tta,Tolyltriazole Tta For Water Treatment
Zhengzhou Chorus Lubricant Additive Co.,Ltd. , https://www.cn-lubricantadditive.com