View Full Document. Ice Pellets Ice pellets (also called sleet) are refrozen snowflakes. They occur when a layer of air aloft is warm enough (> 0 ï° C) to melt snowflakes into raindrops but the air near the ground is cold enough to freeze the drops.
acarid - very small free-living arachnid that is parasitic on animals or plants; related to ticks. 1  mite - any of numerous very small to minute arachnids often infesting animals or plants or stored foods. 2  Acaridae, family Acaridae - mites.
Secondly, a pesticide designed to kill ticks is termed an acaricide.. The word derives from the subclass of arachnids to which ticks belong: Acari. These pests are related to spiders and mites. The recommendations for tick control in yards fall mainly into three categories (they're not mutually exclusive).