Type of appliances
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Pesticides are available in various forms.
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Application Equipment are designed according to the types of formulations to be sprayed.
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Application Equipment are available in a variety of sizes ranging from small to big keeping in view the application capacity and the source of energy.
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These application equipment may be either manually or power operated.
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They can be further classified into moveable and protable appliances.
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By ‘Moveable’ is meant that which can be moved around on wheels or lifted by two or more persons.
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‘Portable’ means equipment which can be carried by one person.
Selection of appliance
Selection of equipment
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The wise farmer will use the following check-list when selecting his sprayer or duster:
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Carefully check the quality of all the raw material used in the equipment.
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Check welded joints and seams, and examine moving parts for smoothness and finish.
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Make sure detachable parts fit securely and are easy to assemble and take apart.
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Do not be put off by higher price – it usually means superior quality. Ensure that you get the equipment most suitable for the job you wish to do.
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Select the Nozzle most suited for your purpose. Test the nozzle for discharge rate and degree of spray angle.
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Ask for the equipment to be demonstrated and make sure you understand completely how it works, before buying it.
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Check availability of parts and after-sales service. Always purchase genuine spare parts, preferably from the manufacturer’s authorized dealer or stockist.
Application Technique
HV : High Volume = More than 150 l/ha.
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Suitable for insecticides, fungicides, herbicides.
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Can be done woth knapsack sprayers, tractor mounted sprayers.
LV : Low Volume = Approx. 10-150 l/ha.
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Suitable for insecticides, fungicides.
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Can be done with motorized knapsack sprayer, air craft, (in other countries) low r.p.m. Spinning Disc Appliances are also used.
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Various equipment and techniques being used in last three decades are shown diagrammatically alongside.
ULV : Ultra Low Volume = Approx. 1-5 l/ha.
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Suitable for insecticides.
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Can be done with High r.p.m. spinning disc appliances, motorized knapsack sprayer fited with special spinning disc with special spinning disc attachment and air craft.
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