Which nozzle type produces many small droplets that can penetrate plant canopies?

Study for the Oregon Right of Way Pesticide Test. Access questions, hints, and explanations to master the exam content and boost your readiness. Ace your exam!

Hollow-cone nozzles are designed to produce a fine mist of many small droplets, which is particularly effective for applications requiring penetration into dense plant canopies. The hollow-cone pattern allows for better coverage and improved ability to reach the lower parts of the plants, as smaller droplets can easily fit through the canopy and avoid being deflected by leaves or stems. This quality makes hollow-cone nozzles a popular choice for pesticide applications where thorough coverage is essential, such as in orchards or row crops with leafy plants.

Flat-fan nozzles produce a flat spray pattern that offers even coverage over a wide area, but they may not be as effective at penetrating thick canopies as hollow-cone nozzles. Full-cone nozzles create a solid cone of spray, which can lead to larger droplets that may drift away before reaching the target area. Wobbler nozzles disperse water in a unique manner, but they also do not generate the fine droplet size conducive to penetrating dense foliage. Hollow-cone nozzles' specific design gives them the distinct advantage for this type of application.

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