These proceedings contain abstracts of papers on diseases, weeds and pests associated with crops (mainly horticultural and field crops) and trees. The abstracts are classified under the following headings: economic entomology, mites, fungal diseases, bacterial diseases, viral diseases, nematodes,...

Three field experiments were carried out in Jordan during the spring growing seasons of 1995, 1996 and 1997 to study the effect of the different aluminum foil applications (surface mulched aluminum foil, aluminum foil boards) in controlling mosaic diseases [watermelon mosaic II potyvirus, zucchini...

A field study conducted on maize plants growing in three different conditions (one or two rows cultivated along the walls of houses in working-class districts of Yaoundé, Cameroon; vacant lots of the city that we call "urban gardens"; and an experimental field outside the city) revealed that the...

Narrow-leafed lupin (Lupinus angustifolius) was sown in five field experiments in Australia over three years to investigate the effects of applying imidacloprid, alpha-cypermethrin, triazamate and methamidophos on aphid vector numbers, spread of cucumber mosaic virus (CMV), resulting yield losses...

Mechanical inoculation and transmission by thrips (Frankliniella occidentalis) were used to screen 22 Lycopersicon peruvianum accessions and 2 Lycopersicon chilense accessions for resistance to tomato spotted wilt virus (TSWV). Two highly aggressive Spanish TSWV isolates were used (HA-931100 and...

Trials were conducted to determine whether selected dicotyledonous species: Arachis glabrata, Arachis pintoi, Chamaecrista rotundifolia, Desmodium heterocarpon var. ovalifolium, Indigofera spicata, Pueraria phaseoloides and Wedelia trilobata were hosts for the larval development of M. crudus. Known ...

The resistance of some indigenous soyabean lines to yellow mosaic virus [mung bean yellow mosaic bigeminivirus], transmitted by Bemisia tabaci, was evaluated in the field in New Delhi, India, during kharif 1996-98. Four lines, PK-1189, PK-1180, SL-443 and SL-444, were consistently the most...

A three-year field study (1995-97) conducted at the Potato Research Centre in Fredericton, New Brunswick, showed that imidacloprid applied in furrow at planting or twice to the foliage in mid-July could result in a limited reduction of PLRV [potato leaf roll luteovirus] spread in the potato crop,...

The epidemiology, symptomatology, prevention and control of acid rot of grape in France are described. Yeasts and bacteria naturally present in the vineyard are responsible for this disease, in particular the yeasts Candida diversa, C. stellata, Kloeckera apiculata and Metschnikowia pulcherrima...