000			01330nam a2200241 4500
999			_c189195 _d189193
003			Ge_NSL
005			20180430163917.0
008			180430s2003 it ||||| |||| 00| 0 eng d
020			_a9251050201
020			_a9789251050200
041			_aeng
080			_a632
100			_aBoa, Eric
245			_aAn illustrated guide to the state of health of trees : _brecognition and interpretation of symptoms and damage / _cE R Boa ; Food and Agriculture Organization of the United Nations.
264			_aRome : _bFood and Agriculture Organization of the United Nations, _c 2003.
300			_avi, 49 p. : _bill.
505			_aSummary: Insect pests and diseases routinely affect the health of trees, and major outbreaks can have catastrophic environmental and economic impacts. The effective management of all tree health problems depends on their early detection. This guide provides 140 photographs of symptoms from more than 50 tree species to be used as a basis for demonstrating the effects of pest (biotic) and non-living (abiotic) influences.
653			_aბოტანიკა
653			_aმცენარეთა დაავადებანი
653			_aხეების დაზიანება
710			_aFood and Agriculture Organization of the United Nations _92506
942			_2udc _cBK