Schädlichkeit der Linsenblütengallmücke Contarinia lentis Aczél (Diptera, Cecidomyiidae) und ihre Verbreitung in der ČSSR

Translated title of the contribution: Injuriousness of lentil gall midge Contarinia lentis Aczél (Diptera, Cecidomyiidae) and its distribution in Czechoslovakia

P. Von Kolesík, Miroslav Kolesik

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

There has been an outbreak of lentil gall midge C. lentis on lentil in Czechoslovakia since 1984. Its extent and cause are given below. Infestation symptom-the gall-is described. The level of damage is defined as percent rate of the amount of galls and flower buds containing eggs of C. lentis from the amount of pods, flowers, galls, flower buds containing eggs and flower buds not containing eggs. As estimation is taken mostly at the end of lentil vegetation the level of damage is simplified to percent rate of the amount of galls from the amount of galls and pods. The level of damage of small parts of lentil stands can achieve 80%. Single plants with 95% level of damage were found. Proportional dependence of thousand-kernel weight on the level of damage was found out. Two functions of dependence of yield on the level of damage were compared: a simple linear one and a quadratic one which included the dependence of thousand-kernel weight on the level of damage. The generally valid linear function of dependence of yield y on the level of damage x is recommended: y=0.01 e (100-x) where e means yield at 0% damage level. Recent distribution area of this species in Czechoslovakia is given. In 1985-1988 the average level of damage of lentil stands from outbreak centre ranged from 3.08 to 52.05%. The average yield losses in Czechoslovakia were 5.49% in 1985, 4.98% in 1986, 2.87% in 1987 and 3.97% in 1988. Concentration of lentil fields in a small area was recognized as the main cause of the outbreak of C. lentis in Czechoslovakia.

Original languageGerman
Pages (from-to)150-156
Number of pages7
JournalAnzeiger für Schädlingskunde Pflanzenschutz Umweltschutz
Volume62
Issue number8
DOIs
StatePublished - Nov 1989
Externally publishedYes

Fingerprint

Contarinia
Lens Plant
Czechoslovakia
Cecidomyiidae
gall
lentils
Diptera
galls
damage
Eggs
Disease Outbreaks
buds
flower
bud
pods
Weights and Measures
egg
seeds
signs and symptoms (plants)
distribution

ASJC Scopus subject areas

  • Environmental Science(all)
  • Agricultural and Biological Sciences(all)

Cite this

@article{b50391684d7647619b73f231f5bc97c4,
title = "Sch{\"a}dlichkeit der Linsenbl{\"u}tengallm{\"u}cke Contarinia lentis Acz{\'e}l (Diptera, Cecidomyiidae) und ihre Verbreitung in der ČSSR",
abstract = "There has been an outbreak of lentil gall midge C. lentis on lentil in Czechoslovakia since 1984. Its extent and cause are given below. Infestation symptom-the gall-is described. The level of damage is defined as percent rate of the amount of galls and flower buds containing eggs of C. lentis from the amount of pods, flowers, galls, flower buds containing eggs and flower buds not containing eggs. As estimation is taken mostly at the end of lentil vegetation the level of damage is simplified to percent rate of the amount of galls from the amount of galls and pods. The level of damage of small parts of lentil stands can achieve 80{\%}. Single plants with 95{\%} level of damage were found. Proportional dependence of thousand-kernel weight on the level of damage was found out. Two functions of dependence of yield on the level of damage were compared: a simple linear one and a quadratic one which included the dependence of thousand-kernel weight on the level of damage. The generally valid linear function of dependence of yield y on the level of damage x is recommended: y=0.01 e (100-x) where e means yield at 0{\%} damage level. Recent distribution area of this species in Czechoslovakia is given. In 1985-1988 the average level of damage of lentil stands from outbreak centre ranged from 3.08 to 52.05{\%}. The average yield losses in Czechoslovakia were 5.49{\%} in 1985, 4.98{\%} in 1986, 2.87{\%} in 1987 and 3.97{\%} in 1988. Concentration of lentil fields in a small area was recognized as the main cause of the outbreak of C. lentis in Czechoslovakia.",
author = "{Von Koles{\'i}k}, P. and Miroslav Kolesik",
year = "1989",
month = "11",
doi = "10.1007/BF01907339",
language = "German",
volume = "62",
pages = "150--156",
journal = "Journal of Pest Science",
issn = "1612-4758",
publisher = "Springer Verlag",
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TY - JOUR

T1 - Schädlichkeit der Linsenblütengallmücke Contarinia lentis Aczél (Diptera, Cecidomyiidae) und ihre Verbreitung in der ČSSR

AU - Von Kolesík, P.

AU - Kolesik, Miroslav

PY - 1989/11

Y1 - 1989/11

N2 - There has been an outbreak of lentil gall midge C. lentis on lentil in Czechoslovakia since 1984. Its extent and cause are given below. Infestation symptom-the gall-is described. The level of damage is defined as percent rate of the amount of galls and flower buds containing eggs of C. lentis from the amount of pods, flowers, galls, flower buds containing eggs and flower buds not containing eggs. As estimation is taken mostly at the end of lentil vegetation the level of damage is simplified to percent rate of the amount of galls from the amount of galls and pods. The level of damage of small parts of lentil stands can achieve 80%. Single plants with 95% level of damage were found. Proportional dependence of thousand-kernel weight on the level of damage was found out. Two functions of dependence of yield on the level of damage were compared: a simple linear one and a quadratic one which included the dependence of thousand-kernel weight on the level of damage. The generally valid linear function of dependence of yield y on the level of damage x is recommended: y=0.01 e (100-x) where e means yield at 0% damage level. Recent distribution area of this species in Czechoslovakia is given. In 1985-1988 the average level of damage of lentil stands from outbreak centre ranged from 3.08 to 52.05%. The average yield losses in Czechoslovakia were 5.49% in 1985, 4.98% in 1986, 2.87% in 1987 and 3.97% in 1988. Concentration of lentil fields in a small area was recognized as the main cause of the outbreak of C. lentis in Czechoslovakia.

AB - There has been an outbreak of lentil gall midge C. lentis on lentil in Czechoslovakia since 1984. Its extent and cause are given below. Infestation symptom-the gall-is described. The level of damage is defined as percent rate of the amount of galls and flower buds containing eggs of C. lentis from the amount of pods, flowers, galls, flower buds containing eggs and flower buds not containing eggs. As estimation is taken mostly at the end of lentil vegetation the level of damage is simplified to percent rate of the amount of galls from the amount of galls and pods. The level of damage of small parts of lentil stands can achieve 80%. Single plants with 95% level of damage were found. Proportional dependence of thousand-kernel weight on the level of damage was found out. Two functions of dependence of yield on the level of damage were compared: a simple linear one and a quadratic one which included the dependence of thousand-kernel weight on the level of damage. The generally valid linear function of dependence of yield y on the level of damage x is recommended: y=0.01 e (100-x) where e means yield at 0% damage level. Recent distribution area of this species in Czechoslovakia is given. In 1985-1988 the average level of damage of lentil stands from outbreak centre ranged from 3.08 to 52.05%. The average yield losses in Czechoslovakia were 5.49% in 1985, 4.98% in 1986, 2.87% in 1987 and 3.97% in 1988. Concentration of lentil fields in a small area was recognized as the main cause of the outbreak of C. lentis in Czechoslovakia.

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