Biology and Pathogenicity of the Yellow Beet Cyst Nematode, a Host Race of Heterodera Trifolii On Sugar Beet in the Netherlands

Maas, P. W. T.; Heijbroek, W.

doi:10.1163/187529282x00538

Cited by 29 publications

(27 citation statements)

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“…When these two extreme figures are excluded, the average breakdown factor was 0.26, varying from 0.14 to 0.43. This population course agrees well with previous results (Maas and Heijbroek, 1982).…”

Section: N E M a T O D E Populationsupporting

confidence: 93%

“…In Fig. 4, the decreasing yields of these successive crops are Compared with the relation between yield and nematode density reported earlier (Maas and Heijbroek, 1982). As the shape of both curves is similar, environmental conditions in the different years have a limited effect on this relation.…”

Section: N E M a T O D E Populationmentioning

confidence: 53%

“…Relation between initial yellow beet cyst nematode density and yield of sugar-beet. Solid line, yields of successive crops in untreated plots relative to plots treated with fumigant and granular nematicide in the two-year rotation; broken line, yields of different plots relative to uninfected plots reported earlier (Maas and Heijbroek, 1982).…”

Section: N E M a T O D E Populationmentioning

confidence: 98%

“…Maas and Heijbroek (1982) revealed that the yellow beet cyst nematode is highly pathogenic to sugar beet. They found the threshold nematode density for damage (tolerance level) to be about 5 eggs per millilitre of soil and the yield to he reduced by about 35% at 50 eggs per millilitre.…”

Section: Introductionmentioning

confidence: 99%

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Management of the yellow beet cyst nematode with crop rotation, soil fumigation and granular nematicides

Maas¹,

Lamers

1988

Netherlands Journal of Plant Pathology

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A trail field was managed for six years to test effects of short crop rotations, soil fumigation and granular nematicides on the population dynamics of the yellow beet cyst nematode (Heterodera trifolii f.sp. beta) and sugar-beet yields.In the two-year rotation, the cyst nematode population before planting varied from about the tolerance level (5 eggs per millilitre of soil) to 25 eggs per millitlitre of soil, leading to losses of sugar yield. Soil fumigation with metam-sodium effectively reduced the nematode density before planting, resulting in a 15 and 25% increase in sugar yield in the first two crops, respectively, but was insufficient to protect the third sugar-beet crop from yield-reducing nematode attack. This was attributed to the wet soil at the time of application and accelerated disappearance of the chemical in the soil through biological adaptation to repeated fumigation. Oxamyl or aldicarb granular nematicides applied as a side-dressing to the rows had insufficient effect to protect the sugar-beet from yield-reducing nematode attack. An overall treatment with aldicarb rotavated into the soil, alone and in addition to soil fumigation, increased sugar yield significantly. However in the two-year rotation, yield of the third sugar-beet crop treated with soil fumigation and granular nematicide was still lower than that of the untreated second crop in the three-year rotation.In the three-year rotation, the cyst nematode population before sugar-beet varied from hardly detectable to about the tolerance level. Here sugar-beet could be protected from yield-reducing nematode attack by soil fumigation or an overall treatment with granular nematicide. In the threeyear rotation with soil fumigation an increase of Rhizoctonia crown rot was observed in the second sugar-beet crop.

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Section: N E M a T O D E Populationsupporting

confidence: 93%

Section: N E M a T O D E Populationmentioning

confidence: 53%

Section: N E M a T O D E Populationmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Management of the yellow beet cyst nematode with crop rotation, soil fumigation and granular nematicides

Maas¹,

Lamers

1988

Netherlands Journal of Plant Pathology

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“…LEACHF accounts for the effect of root leachates on egghatch (Maas and Heijbroek, 1982;Fig. 2a) and TEMPF for the effect of temperature (unpublished data; Maas and Heijbroek, 1982;Fig.…”

Section: Construction Of the Modelmentioning

confidence: 99%

Spring invasion of Heterodera schachtii in sugarbeet; a simulation study

Werf

Rabbinge

Heijbroek³

1986

Netherlands Journal of Plant Pathology

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A simulation model was developed for the spring invasion of the beet cyst nematode, Heterodera schachtii Schmidt, into sugarbeet roots, according to the state variable approach. This model describes the processes of egghatch, emergence of second stage larvae from cysts, migration to roots and penetration into roots quantitatively, using published data.In 1983 a field experiment was conducted to test this model. H. schachtii cysts were introduced at depths of 6-29 em in PVC-cylinders, buried in the soil. The rooting depth of sugarbeet seedlings, growing in these cylinders, was limited to 5 em by 50 ~-tm mesh nylon gauze. Every 10 days the second stage larvae, which had penetrated into the roots of these seedlings were counted. After 50 days, about 400Jo of the eggs had hatched. More than 20% of the emerged larvae penetrated if the cysts had been buried undeeply, and only 4% if the cysts had been buried at 29 em depth.The model predicted the course of penetration into the root during the first 40 days with reasonable accuracy (r 2 = 0.79), but in the 5th period of 10 days the model made an overestimation of more than 100%. Egghatch after 50 days was correctly simulated. The differences in penetration into the root between the model and the experiment might result from an oversimplified simulation of the penetration success or the neglection of mortality of second stage larvae. Detailed experiments should be done to provide better parameters for these factors.

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Pests

and¹,

Cooke²

2006

Sugar Beet

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Biology and Pathogenicity of the Yellow Beet Cyst Nematode, a Host Race of Heterodera Trifolii On Sugar Beet in the Netherlands

Cited by 29 publications

References 0 publications

Management of the yellow beet cyst nematode with crop rotation, soil fumigation and granular nematicides

Management of the yellow beet cyst nematode with crop rotation, soil fumigation and granular nematicides

Spring invasion of Heterodera schachtii in sugarbeet; a simulation study

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