Lawn and garden sprayers are important tools for gardeners, fruit growers and ground care professionals who need to control the growth rate and quality of their crops and turf to meet the demands of customers and employers. Applying fertilisers and plant depressants is essential to the gardening industry and the use of purpose made sprayers makes this task significantly easier. The sprayers are available in several designs to suit different application needs, from the simple hand held sprayers that prove their worth in cramped locations such as greenhouses to the high capacity back pack sprayers that can hold large volumes of liquid. The backpack sprayer is also known as the knapsack sprayer and is particularly well suited to working over large areas where sensitive crops could be easily damaged with heavy machinery. A full range of nozzles and lances are also available to accommodate the different applications that need to be met.