(comparative more colloquial, superlative most colloquial) ( 1 linguistics) Denoting a manner of speaking or writing that is characteristic of familiar conversation; informal.  Of or pertaining to a conversation; conversational or chatty.
Cotton dust is often present in the air during cotton handling and processing. Cotton dust may contain many substances including ground-up plant matter, fiber, bacteria, fungi, soil, pesticides, non-cotton matter, and other contaminants that may have accumulated during growing, harvesting, and subsequent processing or storage periods.
The cotton leafworm, Spodoptera littoralis is considered as one of the most serious and destructive phytophagous Lepidopterous insect-pests in Egypt, not only for cotton plants but also for more than 70 cultivated field crops and vegetables [7,2].