from English Grammar Today. Efficient and effective are adjectives. We use efficient to describe something or someone that works in a quick and organised way: The new online banking system offers a convenient and efficient way to check your account. [extract from a reference for someone applying for a job]
Main Disease. Oak wilt is caused by the fungus Ceratocystis fagacearum which develops in the outer sapwood of the tree. The infected tree reacts by developing tyloses and gums which subsequently restrict the flow of water and nutrients in affected vascular tissues with the result that the tree wilts and subsequently dies (French & Stienstra, 1980). Host Range.
Healing Period. The healing period for poison oak varies depending on the extent of exposure and any complications which may develop. In most cases, the rash starts to appear within 48 hours. It typically lasts from one to two weeks, but can last up to three weeks or longer in some cases. When the rash is severe, it may spread further after a few days.