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Abundance of beet eelworm Heterodera schachtii in the region of middle Bohemia


, : Abundance of beet eelworm Heterodera schachtii in the region of middle Bohemia. Listy Cukrovarnicka 84(5): 97-102

In 8 sugar-beet regions of Middle Bohemica, Czechoslovakia, 2,996 samples from 195 localities were taken. 11,984 investigations showed that 69.1% of soil samples had few Heterodera schachtii, there was a medium infestation in 13.4%, a strong infestation in 7.7% and a very strong infestation in 7.3%.

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