Agrochemicals – Stanford Chemicals https://www.stanfordchem.com Global Supplier of Hyaluronic Acid & Chondroitin Sulfate Tue, 17 Dec 2024 08:47:51 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.18 https://www.stanfordchem.com/wp-content/uploads/2018/08/cropped-STANFORD-CHEMICALS-LOGO-1-32x32.jpg Agrochemicals – Stanford Chemicals https://www.stanfordchem.com 32 32 2,4-Dichlorophenoxyacetic acid https://www.stanfordchem.com/2-4-dichlorophenoxyacetic-acid.html Wed, 29 Aug 2018 07:39:37 +0000 https://www.stanfordchem.com/product/24-dichlorophenoxyacetic-acid 2,4-Dichlorophenoxyacetic acid

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2,4-Dichlorophenoxyacetic acid

 

Product Name 2,4-Dichlorophenoxyacetic acid
CAS No 94-75-7
Appearance White crystal
Specifications (COA) Assay: 98.0% min
Water: 0.3% max
Free phenol: 1.0% max
Formulations 98%TC,
720g/l SL
Target crops

1.Tomato, eggplant, potato, pimento, strawberry and so on.
2. Vegetable fresh-keeping: cabbage, radish, cauliflower
3. Promote seed germination, wheat, cucumber, seed-soaking

Prevention objects Control of broad-leaved aquatic weeds. The isopropyl ester can also be used as a plant growth regulator to prevent premature fruit fall in citrus fruit
Mode of action 1.Systemic herbicide
2.Selective herbicide
3.Stem and leaf treatment herbicide
Features Safe to human beings and animals

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1-MCP https://www.stanfordchem.com/1-mcp.html Wed, 29 Aug 2018 07:39:37 +0000 https://www.stanfordchem.com/product/1-mcp 1-MCP

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1-MCP

 

Product Name 1-Methylcyclopropene
Chemical Name

Cyclopropene, 1-methyl-;

1-Methylcyclopropene;

Epa pesticide chemical code 224459;

Ethylbloc;Hsdb 7517;

Smartfresh;

1-Methylcyclopropen;

1-Methylcyclopropene in cyclodextrin

1-MCP

CAS No 3100-04-7
Appearance White powder
Specifications (COA)

Purity: 3.5% min

          4.0%, 4.5%,5.0%

Gas purity: 99% min

Formulations 3.3% CG
Mode of action

1. Postpone senility

2. Fresh-keeping

3. Extend the postharvest storage and shelf life

 

Target crops

Fruits:

Apple, pear, kiwi fruit, peach, persimmon, apricot, cherry, plum, grape, strawberry, melon, jujube,

water melon,banana , custard apple , mango, loquat , bayberry , papaya , guava , star fruit and other fruits.

Vegetables:

Tomato, garlic, pepper, broccoli, cabbage, eggplant, cucumber, bamboo shoots, according to oil,

beans, cabbage,

bitter gourd, coriander, potato, lettuce, cabbage, broccoli, celery, green pepper, carrots and other vegetables;

Flowers:

Tulip, alstroemeria, carnation, gladiolus, snapdragon, carnation, orchid, Gypsophila, rose, lily, campanula

 

Edible mushroom: Hongxi mushroom, abalone mushrooms.

Application

The 1-MCP’s application is quite easy:

 

First step:

-Put it in 0.1mol/L alkaline solution, such as NaOH solution.

-Rate: 1g of 1-MCP in 40-60ml of 0.1mol/L NaOH solution.

-Remark: we use NaOH solution instead of water, as when the tempreture is lower than 0℃ in storage, water will freeze and can not work.

 

Second step:

-When soluted, the 1-MCP will automatically release into the air.

And the crops are surrounded with 1-MCP mixed air. It is so called “fumigation”, or technically called 1-MCP treatment.

-Remark: In order to have a thorough and successful result, a air-sealed space is required.

 

Noted:

-1g of 1-MCP powder can be used in the room of 15 cubic meter.

-Divide the solution in different place of storage can let 1-MCP spread adequately.

-Put solution in the position which higher than crops.

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Difenoconazole https://www.stanfordchem.com/difenoconazole.html Wed, 29 Aug 2018 07:39:37 +0000 https://www.stanfordchem.com/product/difenoconazole Difenoconazole

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Difenoconazole

Introduction of Difenoconazole:

Product Name Difenoconazole
Chemical Name

SCORE;

1-((2-(2-chloro-4-(4-chlorophenoxy)phenyl)-4-methyl-1,3-dioxolan-2-yl)methyl)-1h-1,2,4-triazole;

DIFENOCONAZOL;DIFENOCONAZOLE;DIVIDEND;

1h-1,2,4-triazole,1-((2-(2-chloro-4-(4-chlorophenoxy)phenyl)-4-methyl-1,3-diox;

4-triazole,1-((2-(2-chloro-4-(4-chlorophenoxy)phenyl)-4-methyl-1,3-dioxolan-2-yl)methyl)-1h-2;

cga169374

Molecular structure

CAS No 119446-68-3
Appearance White to light beige solid
Specifications (COA)

Purity: 95% min

Acidity (as H2SO4): 0.3% max

Water: 0.5% max

Formulations 97% TC, 96.5% TC, 95% TC, 40% SC, 37% WDG, 30% SC, 25% EC, 25% ME, 10% ME, 10% WDG
Mode of action

Sterol methylation inhibitors

Target crops

Fruit trees, vegetables, tomato, sugar beet, banana, tomato, rice, soybean, wheat, barley, grape, potato, peanut, apple, watermelon, strawberry, citrus

Type of diseases

Fungus

Usage

1. Foliage spray

2. Seed treatment

Prevention disease

Scab, black blain leaves, white rot, spot disease, powdery mildew, leaf spot, rust, and stripe rust

Features

1. Systemic fungicide

2. Broad spectrum fungicide

Toxicity

Acute oral LD50 for rats 1453mg/kg;

Acute dermal LD50 for rabbits>2010mg/kg

Irritation to skin and eyes.

 

Formulation of Difenoconazole:

Single Dose of Difenoconazole Preparation of Difenoconazole Total Content
WDG/Water Dispersible Granule 10%, 15%, 20%, 30%, 37%, 60%
EW/Emulsion 5%, 10%, 20%, 25%, 40%
FSC/Flowable Concentrate for Seed Coating 3%, 30g/l
EC/Emulsifiable Concentrate 25%, 30%, 40%, 250g/l
SC/Aqueous Suspension Concentrate 10%, 25%, 30%, 40%
ME/Micro-Emulsion 10%, 20%, 25%, 30%
WP/Wettable Powder 10%, 12%, 30%
RR/HN/Hot FoggingConcentrate 10%
Mixture of Difenoconazole Azoxystrobin SC 26%, 30%,  32%, 32.5%, 325g/l, 35%, 36%, 40%, 45%, 48%
Kresoxim-methyl WP 20%, 40%, 60%, 80%
SC 30%, 40%
WDG/WG 40%, 50%, 52%
Tebuconazole ZX/FS/Flowable Concentrate for Seed Treatment 5%
WP 20%
DBDCB WP 25%
Imazalil EW 10%
Propiconazole WDG 18%
EW 30%, 50%
ME 30%, 33%, 40%, 300g/l
SC 30%
SE/Aqueous Suspo-Emulsion 30%
EC 30%, 50%, 60%, 300g/l, 500g/l
Thiophanate-methyl WP 25%, 40%, 45%, 50%, 70%
SC 40%

Propamocarb Hydrochloride

SC 63%
Prochloraz EW 20%, 35%, 40%
SC 25%, 28%
ME 20%
WP 70%, 75%
Epoxiconazole SC 30%
Fludioxonil FSC 4.8%
Imidacloprid FSC 26%
Propineb WP 50%, 70%
Carbendazim SC 20%, 30%, 40%
WP 30%, 32.8%, 55%, 60%
Thiram WP 60%
Hexaconazole SC 30%
Metalaxyl-M FSC 10%
Zhongshengmycin WP 8%, 16%
Validamycin WP 12%
Thifluzamide SC 27.8%
Polyoxin B WP 10%
Mancozeb RR/HN 10%
WP 30%, 45%, 55%, 64%
Fludioxonil+Imidacloprid FSC 23%
Fludioxonil+Thiamethoxam FSC 27%

 

Dosage of Difenoconazole WDG/WG:

Crop Control objects Formulation and dosage of Difenoconazole Usage
10%WDG 15%WDG 20%WDG 30%WDG 37%WDG 60%WDG
pear scab

dilution rate:

6000-7000

dilution rate:  

9000-10000

dilution rate:  

12000-14000

dilution rate:  

18000-21000

dilution rate:  

22000-25000

dilution rate:  

36000-42000

spray
apple alternaria leaf spot

dilution rate:

1500-3000

dilution rate:  

2000-4500

dilution rate:  

3000-5500

dilution rate:  

4500-6000

dilution rate:  

5500-7500

dilution rate:  

9000-15000

spray
citrus tree scab

dilution rate:

1000-2000

dilution rate:  

1500-3000

dilution rate:  

2000-4000

dilution rate:  

3000-6000

dilution rate:  

3500-7000

dilution rate:  

6000-12000

spray
banana sigatoka

dilution rate:

1000-1500

dilution rate:  

1500-3000

dilution rate:  

2000-3000

dilution rate:  

2500-4000

dilution rate:  

3000-5000

dilution rate:  

5000-8000

spray

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Bacillus thuringiensis israelensis https://www.stanfordchem.com/bacillus-thuringiensis-israelensis.html Wed, 29 Aug 2018 07:39:37 +0000 https://www.stanfordchem.com/product/bacillus-thuringiensis-israelensis Bacillus thuringiensis serotype israelensis (Bti) is a group of bacteria used as biological control agents for larvae stages of certain dipterans. Bti produces toxins which are effective in killing various species of mosquitoes, fungus gnats, and blackflies, while having almost no effect on other organisms.

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Bacillus thuringiensis israelensis

Bacillus thuringiensis serotype israelensis (Bti) is a group of bacteria used as biological control agents for larvae stages of certain dipterans. Bti produces toxins which are effective in killing various species of mosquitoes, fungus gnats, and blackflies, while having almost no effect on other organisms. Indeed, this is one of the major advantages of B. thuringiensis products in general is that they are thought to affect few nontarget species.

Bti strains possess the pBtoxis plasmid which encodes numerous Cry and Cyt toxins, including Cry4, Cry10, Cry11, Cyt1, and Cyt2. The crystal aggregation which these toxins form contains at least four major toxic components, but the extent to which each Cry and Cyt protein is represented is not known and likely to vary with strain and formulation. Both Cry and Cyt proteins are pore-forming toxins; they lyse midgut epithelial cells by inserting into the target cell membrane and forming pores.
Commercial formulations include “Mosquito Dunks”/”Mosquito Bits”. It is also available in bulk liquid or granular formulations for commercial and public agency use.

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Bacillus thuringiensis kurstaki https://www.stanfordchem.com/bacillus-thuringiensis-kurstaki.html Wed, 29 Aug 2018 07:39:37 +0000 https://www.stanfordchem.com/product/bacillus-thuringiensis-kurstaki Bacillus thuringiensis kurstaki (Btk) is a group of bacteria used as biological control agents against lepidopterans. Btk, along with other B. thuringiensis products, is one of the most widely used biological pesticides due to its high specificity; it is effective against lepidopterans, and it has little to no effect on nontarget species.

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What is Bacillus thuringiensis kurstaki

Bacillus thuringiensis kurstaki (Btk) is a group of bacteria used as biological control agents against lepidopterans. Btk, along with other B. thuringiensis products, is one of the most widely used biological pesticides due to its high specificity; it is effective against lepidopterans, and it has little to no effect on nontarget species. During sporulation, Btk produces a crystal protein that is lethal to lepidopteran larvae. Once ingested by the insect, the dissolution of the crystal allows the protoxin to be released. The toxin is then activated by the insect gut juice, and it begins to break down the gut.

Btk is available commercially and is commonly known as “Garden Dust” or “Caterpillar Killer”, both of which are produced by Safer Brand. Other Btk-producing companies include Bonide and Monterey.

FAQs About Btk

Q1: Is Btk safe for humans and pets?
A1: Yes, Btk is considered safe for humans, pets, and beneficial insects. It specifically targets certain insect larvae and does not affect mammals, birds, or fish.

Q2: Can Btk be used in organic farming?
A2: Yes, Btk is commonly used in organic farming as it is a natural and environmentally friendly pest control method.

Q3: How quickly does Btk work?
A3: Btk starts to work within hours after ingestion by the larvae, causing them to stop feeding. Death usually occurs within a few days.

Q4: Does Btk harm beneficial insects?
A4: Btk is specific to certain insect larvae, particularly those of the Lepidoptera order. It does not harm beneficial insects like bees, ladybugs, or predatory beetles.

Q5: How often should Btk be applied?
A5: The frequency of application depends on the pest pressure and environmental conditions. Follow the product label for specific recommendations, but reapplication is often necessary every 7-10 days during active pest periods.

Q6: Can Btk be used indoors?
A6: Btk is primarily used for outdoor pest control on plants and crops. For indoor use, such as in greenhouses, it can be applied with proper ventilation and safety measures.

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