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.
Poison Oak looks just like Poison Ivy. Only difference is that this form doesnât climb things. Poison Oak causes the same miseries as Poison Ivy. Some people appear to be immune to Poison Ivy, Sumac, or Oak and are lucky enough to have never had its terrible rash. Just remember, that like any other allergy, it is possible to lose immunity.