termite wall treatment Faqs checklist before proceeding

will termite wall treatment effective after pestide dries imidacloride 30.5% sc

Non-Repellent Termiticides (like Fipronil/Termidor)

Residual Effect: Liquid termiticides are formulated to bind with the soil or wood and remain active for an extended period, often 5-10 years, even after drying. This creates a long-lasting barrier.

How Imidacloprid 30.5% SC Works Against Termites:

• Non-Repellent: Imidacloprid is a non-repellent termiticide. This is a crucial characteristic. Unlike older repellent chemicals that termites would avoid, termites cannot detect Imidacloprid. They will unknowingly forage through the treated areas (even when dry) and come into contact with the active ingredient.
• Systemic Action: While the initial application is liquid, once it dries, the Imidacloprid binds with the soil or wood (depending on the application). Termites that come into contact with this dried residue will pick up the chemical.
• “Transfer Effect” or “Domino Effect”: This is where Imidacloprid truly excels. It doesn’t kill termites immediately on contact. Instead, affected termites become carriers of the chemical. They then transfer it to other termites in the colony through social behaviors like grooming (trophallaxis) and sharing food. This leads to a delayed but widespread mortality throughout the colony, eventually reaching and killing the queen, which is essential for long-term termite control.
• Disrupts Nervous System: Imidacloprid works by disrupting the central nervous system of insects, leading to paralysis and death.

Residual Effect and Longevity:

• Imidacloprid 30.5% SC is known for its long residual effect. When applied correctly according to BIS (Bureau of Indian Standards) guidelines for pre and post-construction treatments, it can provide protection for at least 3 to 5 years, and in some cases, even up to 10 years (as claimed by some manufacturers like Bayer for their Premise SC product, which contains Imidacloprid 30.5% SC).
• The effectiveness after drying is due to the chemical’s stability and ability to persist in the treated environment (soil, wood).

Application for Walls:

For wall treatments, Imidacloprid 30.5% SC is typically diluted and injected into the masonry or soil surrounding the foundation walls to create a continuous chemical barrier. Even after the liquid solution has dried, the active ingredient remains in the treated material, ready to be picked up by foraging termites.

Important Considerations for Effectiveness:

• Proper Application: The key to long-term effectiveness is proper application by a trained professional. This includes correct dilution rates, adequate penetration into the wall/soil, and ensuring a continuous barrier without gaps.
• IS 6313 Standards: In India, termite treatments should adhere to IS 6313 (Part-2) 2001 for pre-construction and IS 6313 (Part-3) 2001 for post-construction chemical treatments.
• Soil Type and Conditions: While Imidacloprid binds well with organic matter in soil, environmental factors like excessive moisture or soil disturbances can potentially impact its longevity over a very long period.
• Termite Species and Infestation Severity: The effectiveness can also be influenced by the specific termite species and the size/maturity of the colony.

 

Holes width , ength & gap between those  amount liquid to pour in imdiacloride 30.5% sc  or profinil 2.5%

bayers premise and agenda avilable on amazon with 10X Price to performance deffermance premise is cheap due to  concentration 2.9% vs 30.5%.

based on BIS (Bureau of Indian Standards) guidelines for post-construction termite treatment, here’s a breakdown for both Imidacloprid 30.5% SC and Fipronil 2.9% EC

An emulsifiable concentrate (EC) formulation is a type of pesticide or herbicide formulation where the active ingredient is dissolved in a solvent and combined with emulsifiers to create a liquid concentrate. When diluted with water, the EC formulation forms a stable emulsion, allowing for even distribution of the active ingredient during application.

A Suspension Concentrate (SC) formulation is a liquid pesticide formulation where the active ingredient is a solid, finely ground, and dispersed in a liquid, typically water, rather than dissolved.

General Principles for Wall Treatment (Post-Construction) as per BIS IS 6313 (Part 3): 2001 (and its revisions):

The goal is to create a continuous chemical barrier in the soil and masonry to prevent termites from entering the building.

1. Drilling Holes:

• Diameter: Generally, 12 mm (approximately 0.5 inches) diameter holes are recommended.
• Depth:
  • Along the internal wall and floor junctions: Holes are typically drilled 4-6 inches deep.(the drill machine 12mm drill bit length 4-5inches without shank) The aim is to reach the soil below the floor or into the masonry.  long lenght drill bits 1 feet or 12 inches or 30 cm or 300mm.
  • Along external walls/columns: If treating from the outside, holes can be deeper, often around 1 foot (30 cm or 12inches ), to reach the foundation level.
  • In masonry walls (for voids): Holes can be drilled at a 45-degree angle from both sides of the plinth wall at specified intervals.
• How to dill 45-degree angle in wall?
• Spacing (Gap): Holes are typically drilled at 30 cm (approximately 12 inches or 1 foot) intervals along the treated lines (wall-floor junctions, external perimeter, etc.).

2. Amount of Liquid to Pour/Inject:

The amount of liquid to be injected depends on the area being treated and the concentration of the termiticide. The BIS standards specify application rates in liters per linear meter or square meter.

a. Imidacloprid 30.5% SC:

• Dilution: The standard dilution for termite control is 2.1 ml of Imidacloprid 30.5% SC per 1 liter of water. This results in a 0.075% active ingredient (a.i.) concentration.
• Application Rate:
  • At wall-floor junctions (internal): 1 liter of the diluted emulsion per hole (if drilling into soil below) or until refusal (if drilling into masonry voids). (1 feet gap each hole so 1 sqft =4 litres inneral
  • Along external perimeter (trenching/rodding): 7.5 liters of emulsion per square meter of vertical surface (meaning, 7.5 liters per 30 cm depth of treatment per linear meter). If drilling holes, it would be similar to internal application, ensuring the chemical saturates the soil/masonry.  Imidacloprid 30.5% SC 1sqft how many litres 

b. Fipronil 2.5% EC (Emulsifiable Concentrate, as it’s a common formulation):

• Dilution: The standard dilution for Fipronil 2.5% EC is typically 100 ml of Fipronil 2.5% EC per 1 liter of water. This results in a 0.25% active ingredient (a.i.) concentration.
• Application Rate:
  • At wall-floor junctions (internal): 1 liter of the diluted emulsion per hole (if drilling into soil below) or until refusal (if drilling into masonry voids).
  • Along external perimeter: Similar to Imidacloprid, 7.5 liters per square meter of vertical surface. ( 90-degree angle to the ground. )

Faqs

Imidacloprid 30.5% SC 1sqft how many litres

: Dilute 2.1 ml of formulation in 1 L of water for the control of termites in buildings during pre and post-construction anti termite treatment.

(Note: Treatment has to be carried out as per current BIS practices).

bayer premise dosage per sq ft

the Bureau of Indian Standards (BIS) publishes comprehensive codes of practice for anti-termite measures in buildings. The most current and relevant standards you need to refer to are:

• IS 6313 : Part 2 : 2022: Code of Practice for Anti-Termite Measures in Buildings – Part 2 : Pre-Constructional Chemical Treatment Measures (Fourth Revision)
• IS 6313 : Part 3 : 2022: Code of Practice for Anti-Termite Measures in Buildings – Part 3 : Treatment for Existing Buildings (Fourth Revision)

Since your question specifically mentions “wall treatment,” you are likely dealing with an existing building, so IS 6313 : Part 3 : 2022 will be the primary reference. However, understanding Part 2 for pre-construction can also be helpful for a complete picture of termite prevention.

Here’s a breakdown of the key current BIS practices for termite treatment, drawing from these standards (particularly for post-construction):

I. General Principles as per BIS Standards:

1. Objective: To create a continuous chemical barrier that prevents subterranean termites from reaching and attacking the building structure and its contents.
2. Chemicals: The standards specify the types of termiticides and their permissible concentrations. Currently approved chemicals include:
   • Chlorpyrifos 20% EC: At 1.0% active ingredient (a.i.) concentration.
   • Imidacloprid 30.5% SC: At 0.075% a.i. concentration. (This is the 2.1 ml in 1 litre of water dilution).
   • Bifenthrin 2.5% EC: (Added in recent revisions). At 0.1% a.i. concentration.
   • Note: Lindane 20% EC, previously used, has been removed in recent revisions due to environmental concerns.
3. Application: The chemical solutions/emulsions must be dispersed uniformly in the soil and/or masonry at the required strength to form an effective barrier that is lethal and/or repellent to termites.
4. Safety: Strict adherence to safety precautions, including the use of PPE, is mandatory during handling and application of termiticides.

II. Key Practices for Post-Construction Treatment (IS 6313 : Part 3 : 2022):

This standard focuses on treating existing buildings to eradicate existing infestations and prevent re-infestation.

1. Drill-Fill-Seal (DFS) Method: This is the most common method for existing structures.
   • Hole Drilling:
     • Diameter: Generally 12 mm (0.5 inches).
     • Depth & Location:
       • Along the junction of floor and walls: Holes are drilled at intervals of 30 cm or 12inches (1 foot). The depth should be such that they penetrate the masonry or concrete to reach the soil beneath (for ground floors) or voids within the masonry (for upper floors/walls). The goal is to create a treated zone where termites attempt to enter.
       • Along external perimeter: Similar drilling at 30 cm intervals to create a continuous barrier around the foundation. This might involve drilling deeper, depending on the foundation type, to reach the soil at the base of the foundation.
       • In masonry walls (for existing tunnels/galleries): If termite activity is observed directly within walls, holes are drilled into the infested areas or at strategic points to inject termiticide into the voids where termites are active. This may involve drilling at 45-degree angles to target internal voids effectively.
   • Chemical Injection/Pouring:
     • The diluted termiticide emulsion is poured or injected into the drilled holes.
     • Quantity: The standard specifies the quantity to be injected per linear meter of treated wall or per hole. Typically, for soil saturation, it’s around 1 liter of diluted emulsion per hole or until refusal (when the hole cannot absorb any more liquid). For masonry voids, the amount depends on the extent of voids and absorption.
     • The objective is to ensure saturation of the soil adjacent to the foundation and internal elements, or the voids within the masonry.
   • Sealing: After the treatment, all drilled holes must be sealed with suitable material like cement mortar, plaster of Paris, or non-shrink grout to prevent re-entry of termites and for aesthetic reasons.
2. Treatment of Infested Woodwork:
   • If timber is infested (e.g., door frames, window frames, furniture), the standard recommends drilling 6 mm diameter holes at 15 cm intervals on the infested sections and injecting the termiticide emulsion.
   • Surfaces of infested wood or adjacent wood that might be attacked are also sprayed with the termiticide.
3. Treatment of Mud Tubes/Shelter Tubes:
   • Any visible mud tubes are broken and removed, and the surface beneath is treated directly with the termiticide emulsion.
4. Mound Treatment (if present):
   • If termite mounds are found within the premises or close to the building, they should be destroyed. Holes are made into the mound, and the termiticide emulsion is poured in until saturated (e.g., 4 litres for a 1 m³ mound).
5. Re-treatment: The standard generally recommends re-treatment if there is evidence of re-infestation after the initial treatment, or after the expected residual life of the chemical. (5-10 years)

III. Recent Updates in BIS Standards (e.g., 2022 Revisions):

• Inclusion of New Chemicals: As mentioned, Bifenthrin was added to the list of approved chemicals, offering more options for professionals.
• Emphasis on Non-Repellents: While not explicitly stating to only use non-repellents, the inclusion of Imidacloprid and Bifenthrin (which are non-repellent or have good transfer properties) highlights the shift towards colony elimination strategies.
• Focus on Professionalism: The standards implicitly emphasize that effective treatment requires trained personnel, proper equipment, and adherence to specific application rates and methods.

Where to Access the Standards:

The full text of these BIS standards (IS 6313 Part 2:2022 and IS 6313 Part 3:2022) can be purchased from the Bureau of Indian Standards website or through authorized distributors. These documents provide the precise technical specifications, diagrams, and detailed procedures.

In summary, current BIS practices for termite wall treatment (post-construction) involve a systematic drill-fill-seal method using approved non-repellent termiticides like Imidacloprid or Fipronil, at specified dilutions and application rates, to create a continuous chemical barrier, along with targeted treatment of infested wood and mounds. Always prioritize professional pest control for effective and safe execution of these practices.