A Survey of Brassica Cyst Eelworm in Bedfordshire

Abstract

Brassica cyst eelworm {Heterodera cruciferae Franklin) was found in 74 out of 99 fields in a random survey of 11 parishes in Bedfordshire. Population densities of up to 25 eggs/g of soil occurred in 70 fields, and denser populations in only four fields. Population densities were greater, and more fields were infested, on farms of less than 50 acres than on larger farms.

Records of crop damage by some species of cyst nematodes in eastern England, 1967–77

“…3 shows the distribution of occurrences of crop damage. Winfield and Coppock (1970) made a random survey of 99 fields in 11 parishes of Bedfordshire during 1968. Population densities of up to 25 eggs/g soil occurred in 70 fields, while denser populations occurred in only four fields.…”