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.
Signs of Allergy. If youâre allergic to poison oak, signs will begin to appear one to six days after exposure. Most of the time, youâll notice it within the first 24 to 48 hours. The most obvious evidence of an allergic reaction is skin rash, also called dermatitis. First, youâll notice some stinging, itching, and minor skin irritation.