Details
| Translated title of the contribution | Whitefly on cut gerbera: Biological control by parasitoids or predatory mites? |
|---|---|
| Original language | German |
| Pages (from-to) | 171-178 |
| Number of pages | 8 |
| Journal | Gesunde Pflanzen |
| Volume | 59 |
| Issue number | 4 |
| Publication status | Published - Dec 2007 |
Abstract
Biological control of the whitefly Trialeurodes vaporariorum on cut Gerbera under protected conditions is still risky. Up to now the parasitoids Encarsia formosa and Eretmocerus eremicus are the most frequently used antagonists to control this pest. Additionally, the recently rediscovered predatory mite Amblyseius swirskii is promoted efficient beneficial especially for whitefly control. We conducted a series of experiments to characterize and compare the efficiency of these beneficials under greenhouse conditions. Therefore, we infested gerbera plants artificially with start populations of whiteflies and released parasitoids or the predatory mite in separate experimental units. Treatments without release of antagonists served as control. Results show that parasitoids as well as predatory mites led to a sufficient whitefly control. After release of the recently promoted predatory mite A. swirskii we found no whitefly larvae on the gerbera plants throughout the experimental time. In contrast, after release of the parasitoid species Encarsia formosa or Eretmocerus eremicus whitefly larvae were frequently found on the plants at least in the beginning of the experiments. Nevertheless parasitized whitefly larvae were detected soon after parasitoid introduction and whitefly population build up was not observed. In conclusion, all tested beneficials are valuable antagonists for whitefly control in cut gerbera. Therefore, either time consuming intensive monitoring of whitefly infestation level or preventive antagonist release is obligate in cut gerbera. Biological control strategies for gerbera production are discussed in detail.
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- General Agricultural and Biological Sciences
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In: Gesunde Pflanzen, Vol. 59, No. 4, 12.2007, p. 171-178.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Weiße Fliege an Schnittgerbera
T2 - Biologische Bekämpfung mit Schlupfwespe oder Raubmilbe?
AU - Berndt, Oliver
AU - Meyhöfer, Rainer
AU - Richter, Ellen
PY - 2007/12
Y1 - 2007/12
N2 - Biological control of the whitefly Trialeurodes vaporariorum on cut Gerbera under protected conditions is still risky. Up to now the parasitoids Encarsia formosa and Eretmocerus eremicus are the most frequently used antagonists to control this pest. Additionally, the recently rediscovered predatory mite Amblyseius swirskii is promoted efficient beneficial especially for whitefly control. We conducted a series of experiments to characterize and compare the efficiency of these beneficials under greenhouse conditions. Therefore, we infested gerbera plants artificially with start populations of whiteflies and released parasitoids or the predatory mite in separate experimental units. Treatments without release of antagonists served as control. Results show that parasitoids as well as predatory mites led to a sufficient whitefly control. After release of the recently promoted predatory mite A. swirskii we found no whitefly larvae on the gerbera plants throughout the experimental time. In contrast, after release of the parasitoid species Encarsia formosa or Eretmocerus eremicus whitefly larvae were frequently found on the plants at least in the beginning of the experiments. Nevertheless parasitized whitefly larvae were detected soon after parasitoid introduction and whitefly population build up was not observed. In conclusion, all tested beneficials are valuable antagonists for whitefly control in cut gerbera. Therefore, either time consuming intensive monitoring of whitefly infestation level or preventive antagonist release is obligate in cut gerbera. Biological control strategies for gerbera production are discussed in detail.
AB - Biological control of the whitefly Trialeurodes vaporariorum on cut Gerbera under protected conditions is still risky. Up to now the parasitoids Encarsia formosa and Eretmocerus eremicus are the most frequently used antagonists to control this pest. Additionally, the recently rediscovered predatory mite Amblyseius swirskii is promoted efficient beneficial especially for whitefly control. We conducted a series of experiments to characterize and compare the efficiency of these beneficials under greenhouse conditions. Therefore, we infested gerbera plants artificially with start populations of whiteflies and released parasitoids or the predatory mite in separate experimental units. Treatments without release of antagonists served as control. Results show that parasitoids as well as predatory mites led to a sufficient whitefly control. After release of the recently promoted predatory mite A. swirskii we found no whitefly larvae on the gerbera plants throughout the experimental time. In contrast, after release of the parasitoid species Encarsia formosa or Eretmocerus eremicus whitefly larvae were frequently found on the plants at least in the beginning of the experiments. Nevertheless parasitized whitefly larvae were detected soon after parasitoid introduction and whitefly population build up was not observed. In conclusion, all tested beneficials are valuable antagonists for whitefly control in cut gerbera. Therefore, either time consuming intensive monitoring of whitefly infestation level or preventive antagonist release is obligate in cut gerbera. Biological control strategies for gerbera production are discussed in detail.
KW - E. eremicus
KW - E. Formosa
KW - Gerbera
KW - Trialeurodes vaporariorum
KW - Whitefly
UR - http://www.scopus.com/inward/record.url?scp=36549050445&partnerID=8YFLogxK
U2 - 10.1007/s10343-007-0167-x
DO - 10.1007/s10343-007-0167-x
M3 - Artikel
AN - SCOPUS:36549050445
VL - 59
SP - 171
EP - 178
JO - Gesunde Pflanzen
JF - Gesunde Pflanzen
SN - 0367-4223
IS - 4
ER -