Nematoda, Tylenchida, Aphelenchoididae .
Description, Biology, Life Cycle, Damage, Common Names, Images
- Host plants: strawberry, begonia (Begonia spp.) (*) , fern (Asplenium, Adiantum).
- This species is an external parasite living in the flexures of young leaves at the plant's heart. As growth continues, nematodes migrate to younger leaves. On strawberry, they infest the buds of stolons as well as new plants. They feed on developing leaflets, causing damage clearly visible when leaves spread over.
When infested leaves dry out, the nematodes encyst, thereby resisting desiccation.
- The life-cycle lasts about 15 days. Generations succeed one another as long as conditions are favourable.
- Strawberry plants are stunted and have little vigor. Young leaves are reduced, distorted and have a reddish coloration. Leaflets remain rolled up longer than on healthy plants and are twisted and crinkled, exhibiting blackish-grey bands at the place where the nematodes fed before migrating to younger leaves. Stolons remain short and fruits are fewer and distorted (*) .
HYPPZ on line : Species (scientific name), Pests (common names), Glossary, Crops.