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B&G care and Material formulations


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B&G care and Material formulations

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B&G care and Material formulations

  1. 1. B&G Care and Repair & Material Formulations Types - Advantages - Disadvantages
  2. 2. B&G Care and Repair
  3. 3. Figure 1 The brass nozzle should be cleaned with a toothbrush and a detergent; don't use a metal brush or sharp objects on the nozzle Nozzle (see figure 1) - The brass nozzle determines the pattern (pin-stream or fan) of the liquid spray. The nozzle is made of thick brass and will survive being knocked around in the back of service trucks. However, with extended use, the openings for the fan sprays and the pin-stream will gradually enlarge. This increase will change the angle (80 degrees for the fine fan, 50 degrees for the coarse fan) of the spray, and the distribution of the liquid in the fan may become uneven. The general appearance of the nozzle may not indicate that the openings have enlarged or are damaged. Replace the nozzle every two years to maintain an accurate spray pattern and flow rate.
  4. 4. Figure 2 The filter is located between the hose and the valve; loosen the fitting, remove the filter and clean with a toothbrush. This filter keeps dirt out of the valve and nozzle, replace if it is lost. Filter/Strainer (see figure 2) - The small filter/strainer should be removed, cleaned and replaced regularly. Regardless of the water source or insecticides used, small pieces of dirt and debris often get into the tank. The strainer keeps dirt from clogging the valve and blocking the spray. A toothbrush can be used to clean the strainer.
  5. 5. Figure 3 A 3/8-inch, open- end wrench can be used to tighten the packing nut if the valve develops a leak. Valve (see figure 3) - The Extenda-Ban valve is designed for long service without leaking. A leak in the gaskets may result in a small amount of liquid on the handle or at the end of the valve. Small leaks can be corrected by slight tightening of the packing nut (use a 3/8-inch wrench).
  6. 6. Figure 4 The check valve, at the base of the pump cylinder, can be removed and cleaned, and the base of the cylinder (around the holes) should be cleaned of residue. Tightly replace the check valve, and be certain it is secure. Check Valve (see figure 4) - The check valve at the base of the pump cylinder admits air into the tank as the pump handle is depressed. It can become worn and deposits around its edge (on the pump cylinder) can cause it to leak. Replacing the check valve (PV-266) will keep the pump working and maintain proper tank pressure. Cleaning the bottom of the pump cylinder with a small brush will remove deposits that build up around the edge of the check valve.
  7. 7. Formulations Types - Advantages - Disadvantages
  8. 8. D – dust G – granular S – solution WP – wettable powder EC – emulsifiable concentrate DF – dry flowable WDG – water dispersible granule This is a listing of the more common abbreviations that describe formulations. Formulations
  9. 9. • Evaluate advantages and disadvantages • Do you have the right application equipment? • Can the formulation be applied when and where it is needed? • Will the formulation reach the target pest and be there long enough? Selecting a Formulation There are choices for you to make when selecting a product and the formulation type can play a key role in your selection process.
  10. 10. Wettable Powders (WP) Emulsifiable Concentrate (E or EC) Microencapsulated Selecting a Formulation Theses are four popular formulations. SUSPENSION CONCENTRATE (SC)
  11. 11. Microencapsulated Particles of pesticide active ingredient (liquid or dry) surrounded in a plastic coating; formulated product mixed with water and applied as spray. Following application the capsule releases the pesticide slowly or on contact by the insect.
  12. 12. Untreated Surface (un-painted wood-brick-concrete) Microencapsulated Not absorbed by Untreated Surfaces – Leaves behind capsules that explode when disturbed Mc Mc Mc
  13. 13. Microencapsulated ADVANTAGES  increased safety to applicator; easy to mix, handle and apply; slow release of pesticide DISADVANTAGES  constant agitation required; bees may pick capsules and take back to their hive
  14. 14. Active ingredient (liquid) dissolved in a petroleum-based solvent with an emulsifier added Turns white when mixed. Smells of solvents. Emulsifiable Concentrate (E or EC) Product Dilution
  15. 15. Untreated Surface (un-painted wood-brick-concrete) Ec Ec Ec Emulsifiable Concentrate (E or EC) Easily absorbed by Untreated Surfaces Ec
  16. 16. Emulsifiable Concentrate (E or EC) ADVANTAGES • Easy to handle • Little agitation • Relatively easy on equipment • Leaves little residue • Quicker knockdown DISADVANTAGES • Phytotoxic – plant injury • Easily absorbed by the skin • Flammable • Deterioration of rubber and plastic hoses
  17. 17. Wettable Powders (WP) Wettable powders settle out quickly, therefore require constant agitation in the spray tank Product Dilution
  18. 18. Untreated Surface (un-painted wood-brick-concrete) Wettable Powders (WP) Not absorbed by Untreated Surfaces – leaves a film (powder)behind WP
  19. 19. Wettable Powders (WP) ADVANTAGES DISADVANTAGES  Inhalation hazard  Constant agitation  Difficult to mix in hard water  Abrasive to pumps and nozzles  Visible residues  Easy to store  Easy to measure/mix  Relatively less harmful to plants, animals and surfaces than ECs  Less absorption by human skin and eyes
  20. 20. Suspension Concentrate A stable suspension of solid pesticide(s) in a fluid usually intended for dilution with water before use. Ideally, the suspension should be stable (i.e. not settle out).
  21. 21. Suspension Concentrate ADVANTAGES DISADVANTAGES  A.I. tends to settle out over time.  Easy to store  Easy to measure/mix  Relatively less harmful to plants, animals and surfaces than ECs
  22. 22. Untreated Surface (un-painted wood-brick-concrete) Suspension Concentrate Not absorbed by Untreated Surfaces –
  23. 23. Choose a pesticide formulation that will best suit your pest problem and target site – Safety, ease of use – Human exposure concerns – Phytotoxicity; visible residues – Application equipment considerations Formulation Summary