| dc.contributor.author | Mailu, AM | |
| dc.contributor.author | Rose, DJW | |
| dc.contributor.author | Khamala, CPM | |
| dc.date.accessioned | 2013-06-14T06:32:38Z | |
| dc.date.available | 2013-06-14T06:32:38Z | |
| dc.date.issued | 1980 | |
| dc.identifier.citation | East African Agricultural and Forestry Journal 1978, publ. 1980 Vol. 43 No. 3 pp. 252-258 | en |
| dc.identifier.uri | http://www.cabdirect.org/abstracts/19810584823.html | |
| dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/33496 | |
| dc.description.abstract | Sequential survey procedures are described from Kenya for classifying the damage caused by the aphid Pineus pini (Gmel.) to Pinus patula. The criteria used are the degree of needle stunting caused by a given number of aphids per centimetre of shoot length, the percentage of twigs on individual trees with mats of aphid wool, and the amount of tree surface covered with aphid wool. Field procedures for making measurements are given, and the survey procedures are presented. | en |
| dc.language.iso | en | en |
| dc.title | Sequential surveys for the pine woolly aphid, Pineus pini (L.) Homoptera: Adelgidae in Kenya | en |
| dc.type | Article | en |
| local.publisher | Department of Zoology, University of Nairobi, | en |
