Effects of triflumuron on the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae)

  1. Sáenz-De-Cabezón, F.J. 1
  2. Pérez-Moreno, I. 1
  3. Marco, V. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revista:
Experimental and Applied Acarology

ISSN: 0168-8162

Año de publicación: 2002

Volumen: 26

Número: 1-2

Páginas: 71-78

Tipo: Artículo

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DOI: 10.1023/A:1020985605115 PMID: 12475077 SCOPUS: 2-s2.0-0036952125 WoS: WOS:000178952400005 GOOGLE SCHOLAR

Otras publicaciones en: Experimental and Applied Acarology

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Resumen

The effects of triflumuron on the mortality, fecundity, and fertility of the two-spotted spider mite, Tetranychus urticae, were evaluated in the laboratory. No differences in toxicity for larvae, protonymphs and deutonymphs were observed, but immature stages were 3.8-times more susceptible than adults at the LC50. The compound exhibited a direct contact ovicidal activity influenced by eggs age. 48-72 h old eggs were significantly more sensitive than eggs of the other age classes. No hatch inhibition was observed in eggs laid by treated adult females using a sublethal dose at two physiological times (<12 and 48-72 h old). However, fecundity decreased in younger treated females, but it increased in the older-ones. The toxicity for immatures and eggs, and the sublethal effects described suggest that triflumuron could be an interesting incorporation in integrated pest programs of T. urticae.