3B Ornamental Pest Management MDARD Exam | Questions with 100% correct answers | verified

What are some factors to consider before choosing a piece of application equipment? - Answer-1. Is it well suited to treat the target pest? 2. Will it apply the chosen formulation(s)? 3. Is it affordable? 4. Is it sturdy and durable enough to do the job? 5. Is it easy to fill, operate, and clean? 6. Will it apply pesticides in an environmentally sound manner? What are some advantages and disadvantages of spray applicators? - Answer-Sprayers are usually easy to use, and there are many choices. Different nozzles are available for various uses, targeting a wide range of plant pests. Spraying is one of the most widely used and effective ways to apply pesticides. However, sprayers cannot apply certain formulations. Sprayers can be complex and costly, with many parts to maintain. Most sprayers are prone to drift if not properly managed. Name at least four types of hand sprayers. - Answer-Ready-to-use (pressurized) aerosols, trigger pump sprayers, hose-end proportioners, push-pull pump sprayers, and backpack (knapsack) sprayers. List some benefits and drawbacks of using a hand sprayer. - Answer-Hand sprayers are relatively inexpensive, simple to operate, maneuverable, easy to clean, and easy to store. Some include features such as an adjustable handgun or small spray booms. Hand sprayers are well suited for spot treatments and treating small areas. They can also treat steep slopes and other areas that larger sprayers cannot reach.However, hand sprayers have a small capacity, and their pressure and output may fluctuate. Some do not have a good way to provide agitation. These sprayers are not suitable to apply suspensions like wettable powder spray mixtures. How do ready-to-use aerosols work? Where would you use them? - Answer-Ready-to-use aerosols contain a pesticide dissolved in a volatile liquid under pressure. When discharged from the pressurized cylinder ("bomb"), the pesticide vaporizes. After release, fine particles of pesticide are suspended in the air. You could use an aerosol to treat insects or mites on a small number of plants. Aerosols do not penetrate soil and do not work under very warm or wet conditions. What special risk do you face when using a hose-end proportioner? - Answer-Back-siphonage. Use hose-end proportioners only if you have a fail-safe backflow prevention device between the proportioner and the water supply. You plan to make a spot application of herbicide a good distance from the nearest water supply. Which hand sprayer(s) would you choose for the job? - Answer-A push-pull pump sprayer or backpack (knapsack) sprayer. List some pros and cons of using a small motorized sprayer (such as a power backpack sprayer or an estate sprayer). - Answer-Small motorized sprayers usually have a larger capacity than hand sprayers. They can operate within a wider range of pressures. Many have built-in hydraulic agitation. Some are small enough to use in confined areas. However, like hand sprayers, they are often impractical for wide-area use. These sprayers may not generate enough pressure and flow to provide good coverage of a large tree. List some advantages and disadvantages of using a large, high-pressure (hydraulic) sprayer. - AnswerHydraulic sprayers can treat dense foliage and reach the canopy of tall trees. They may include a boom to spray a wide area. They provide good penetration, reach, and coverage. They are usually durable and long lasting if cared for properly. However, hydraulic sprayers are expensive and require large amounts of water and fuel. Because of their size, they may not be suitable for all sites. They are also more likely than smaller sprayers to cause pesticide drift. How do hydraulic sprayers work? - Answer-The motor of the spray vehicle drives the pump. The pump pressurizes the sprayer, pushing the spray solution out of a storage tank, through the nozzles, and onto the target area. The applicator adjusts the equipment and calculates the water-to-pesticide dilution ratio to achieve the desired application rate. There are many types and designs to choose from.What are the major parts of a spraying system? - Answer-1. Mixing/holding tank. 2. Pump. 3. One or more nozzles. 4. Hose or plumbing connecting the tank to the nozzles. Why is sprayer configuration (setup) important? - Answer-A sprayer must be configured properly to produce a uniform spray. Choose suitable nozzles, and make sure they produce the right pattern overlap for best spray coverage. What is the function of the shut-off valve in a sprayer tank? - Answer-To prevent the liquid in the tank from leaking out if any part of the system needs servicing.