New data on pests and diseases of plant quarantine importance
By browsing through the literature, the EPPO Secretariat has extracted the following new data concerning pests and diseases of plant quarantine importance.
New distribution records
During a field survey conducted in Papua New Guinea, citrus tristeza closterovirus (EPPO A2 quarantine pest) and citrus vein enation disease (EU Annex II/A2) were found. Review of Plant Pathology, 75(10), p 918 (6794).
Colletotrichum acutatum (EU Annex II/A2) was isolated from lesions on fruit and leaves of mangoes grown in Taiwan. Review of Plant Pathology, 75(11), p 1005 (7499).
Eutetranychus orientalis (EU Annex II/A1) is present in Queensland, Australia. It is felt that it has been in Queensland for at least 30 years. Review of Agricultural Entomology, 84(10), p1172 (9719).
Detailed records
Ceratitis cosyra (EPPO A1 quarantine pest) is considered as the most common species of Ceratitis in mango orchards in Zimbabwe. Review of Agricultural Entomology, 84(10), p 1173 (9727).
Cherry leaf roll nepovirus (EPPO A2 on Rubus) was found associated with the decline syndrome of Fagus sylvatica in Central Bohemia and Southeast Moravia, Czech Republic. Review of Plant Pathology, 75(9), p 846 (6225).
Cydia prunivora (EPPO A1 quarantine pest) is present in Massachusetts (USA). Review of Agricultural Entomology, 84(11), p 1292 (10690).
During a survey carried out in mandarin orchards in Sikkim (India), in 1989 and 1990, Elsinöe fawcetii (EU Annex II/A1) and Xanthomonas axonopodis pv. citri (EPPO A1 quarantine pest) were found. Review of Plant Pathology, 75(11), p 1004 (7487).
In Ukraine, Globodera rostochiensis (EPPO A2 quarantine pest) has spread since its first record in the early 1960s. It is estimated that the nematode is now present in an area of 6000 hectares in 12 of the 14 regions where potato production is a major activity. Nematological Abstracts, 65(3), p 123 (987).
Helicoverpa armigera (EPPO A2 quarantine pest) is present in the Andaman Islands (India). Review of Agricultural Entomology, 84(10), p 1149 (9540).
Ips typographus (EU Annex II/B) is present in Slovenia. Review of Agricultural Entomology, 84(8), p 959 (7948).
Liriomyza huidobrensis (EPPO A2 quarantine pest) is reported as being a serious pest of potatoes and other vegetables, in Cartago (Costa Rica), since 1989. Review of Agricultural Entomology, 84(10), p 1161 (9633).
Liriomyza trifolii (EPPO A2 quarantine pest) is present in India in several states, at least in: Andhra Pradesh, Karnataka, Madhya Pradesh, Maharashtra and Tamil Nadu. Review of Agricultural Entomology, 84(8), p 916 (7578-7581).
Tilletia indica (EPPO A1 quarantine pest) is reported for the first time from Gujarat (India). It was detected in grain samples from a field where the cv. Kalyansona was grown for 3 consecutive years. Review of Plant Pathology, 75(11), p 967 (7191).
Xylella fastidiosa (EPPO A1 quarantine pest), causing pear leaf scorch, is reported in several regions of Taiwan. During surveys carried out in 1992 and 1994, only 2 of the 10 regions studied were free from the disease and the incidence ranged from 5 to 43 %. This confirms earlier reports in Taiwan (EPPO RS 94/049). Review of Plant Pathology, 75(10), p 911 (6738).
Host plants
In Japan, Bactrocera cucurbitae and B. dorsalis (both EPPO A1 quarantine pests) have been found during import inspection on Hylocereus undatus (Cactaceae with edible fruit). In addition, both fruit flies could infest Hylocereus undatus in the laboratory. Review of Agricultural Entomology, 84(11), p 1320 (10914).
Field surveys carried out in Thailand, Malaysia and the Philippines showed that Thrips palmi (EPPO A1 quarantine pest) could be found attacking the following vegetables: ridge gourd (Luffa acutangula), bitter cucumber (Momordica charantia), cucumber, aubergine, Capsicum annuum, muskmelon, pumpkin, squash, watermelon, wax gourd (Benincasa hispida), Vigna unguiculata. Of these crops, the most frequently infested were aubergines. Review of Agricultural Entomology, 84(10), p 1165 (9664).
Sources
EPPO Secretariat, 1996-10