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.
Symptoms of poison oak rash. The severity of poison oak rash depends on two factors, i.e. the sensitivity level of the individual exposed to poison oak and the severity of contact. Most individual are not that sensitive, but there are some who can get affected and develop the rash even with the slightest contact with the plant.