Which phytoseiid species is more effective for the control of Aculops lycopersici? Amblyseius swirskii or Neoseiulus californicus.

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KUMRAL N. A., ÇOBANOĞLU S., GENÇER N. S., AKBUDAK N., GÖK N., MERTOĞLU G., ...Daha Fazla

IX Symposium of the European Association of Acarologists, Bari, İtalya, 12 - 15 Temmuz 2022, ss.29

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Bari
  • Basıldığı Ülke: İtalya
  • Sayfa Sayıları: ss.29
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

The tomato russet mite, Aculops lycopersici (Massee) (Acari: Eriophyidae), has become the main pest of tomato worldwide. Since the leaves, petioles and stems of tomato plant are covered with glandular trichomes, they provide a shelter for A. lycopersici but negatively affect predatory phytoseiid mites. This complicates biological control of A. lycopersici on tomato plants. The aim of this study was to compare the biological parameters of two predatory mites, Neoseiulus californicus (McGregor) and Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae) when feeding on A. lycopersici adults on a tomato cultivar having less glandular and unglandular trichomes. The observations on the development, survival, oviposition and life table parameters of both N. californicus and A. swirskii were carried out under controlled laboratory conditions with a 16L:8D photoperiod at 27 ± 1°C and 70 ± 5% RH. Both phytoseiid mites was able to develop successfully from egg to adult stage through their entire life cycle on A. lycopersici. There is no difference between the development times of immature stages and the rates of survival in both phytoseiid species. The reproduction parameters of A. swirskii were higher than N. californicus. A total of 14.4 and 16.1 eggs per female were obtained for N. californicus and A. swirskii, respectively. Although female longevity was close between the predatory species, the oviposition period was longer in A. swirskii (11.4 days) compared with N. californicus (10.0 days). Life table parameters showed that feeding of A. swirskii on A. lycopersici led to higher intrinsic rate of natural increase (rm= 0.158), net reproductive rate (Ro= 14.1) and total reproduction rate (GRR= 21.1) and shorter doubling time (DT= 4.39) compared with the parameters of N. californicus (rm= 0.149; Ro= 11.54, GRR= 11.56 and DT= 4.64). Our findings suggest that A. lycopersici was to be suitable prey for both phytoseiid species on a tomato cultivar having less glandular and unglandular trichomes. This study was funded as a research project (grant number TOVAG 119O961) by TUBITAK.