Monostar is a widely used insecticide and acaricide that offers broad-spectrum control against various pests in a range of crops.1 It's known for its systemic action, quick knockdown effect, and long-lasting control.2 However, it's important to note that Monostar is highly toxic and should be used with caution.3
What it is:
Systemic insecticide and acaricide: Monostar is absorbed by the plant and transported within its tissues, providing protection from within. It also has contact action.4
Organophosphate: It belongs to the organophosphate class of insecticides, which are known for their broad-spectrum activity and fast action.5
Widely used: It's been a popular choice for farmers for many years due to its effectiveness and affordability.6
Active Ingredient:
Monocrotophos 36% SL (Soluble Liquid)7
Mode of Action:
Monostar works by inhibiting the enzyme acetylcholinesterase (AChE) in the nervous system of insects and mites.8 This enzyme is crucial for breaking down the neurotransmitter acetylcholine, which is involved in nerve signal transmission.9 When AChE is inhibited, acetylcholine builds up, leading to overstimulation of the nervous system, paralysis, and ultimately death of the pest.10
Target Pests:
Monostar is effective against a wide range of pests, including:
Brown plant hopper (BPH): A major pest of rice.11
Green leafhopper (GLH): Another important rice pest.12
Stem borers: Larvae that bore into the stems of plants, disrupting nutrient transport.13
Leaf rollers/folders: Larvae that roll or fold leaves and feed inside.14
Aphids: Small, soft-bodied insects that suck sap from plants.15
Thrips: Tiny, slender insects that cause damage by sucking sap from leaves and flowers.16
Whiteflies: Small, winged insects that suck sap and can transmit plant viruses.17
Crops:
Monostar is registered for use on various crops, including:
Paddy (Rice)18
Maize (Corn)19
Cotton20
Tea21
Pulses22
Mustard23
Citrus24
Mango25
Important Note: Monostar is NOT recommended for use on vegetables.26 It carries a "red toxicity symbol" indicating high toxicity.27
Benefits:
Broad-spectrum control: Effective against a wide range of sucking and chewing pests.28
Systemic action: Offers protection from within the plant, reaching pests that may be hidden.29
Fast action: Provides quick knockdown of pests.30
Long-lasting control: Offers good residual activity, providing extended control.31
Cost-effective: Generally an affordable insecticide option.32
How to Use:
Dosage: The recommended dosage is generally 350 ml per acre.33 However, always refer to the product label for specific recommendations for your target crop and pest.
Application: Apply Monostar as a foliar spray, ensuring thorough coverage of the plant, especially the affected areas.34
Important Notes:
High Toxicity: Monostar is highly toxic and should be handled with extreme care.35 Wear appropriate personal protective equipment (PPE) when handling and applying the product.
Safety Precautions: Follow all safety instructions on the product label carefully.
Environmental Considerations: Follow the instructions on the label to minimize environmental impact.
Resistance Management: Rotate Monostar with insecticides from different chemical classes to prevent the development of resistance in pests.
Storage: Store the product in a cool, dry place, away from direct sunlight and heat, and out of reach of children and animals.
If you have a specific crop and pest problem in mind, providing more details will help me give you more tailored advice, keeping in mind the safety concerns associated with Monostar.
