caa a22 4500 469061324 CHVBK 20180323132858.0 cr unu---uuuuu 170328e19920801xx s 000 0 eng 10.1007/BF01275521 doi (NATIONALLICENCE)springer-10.1007/BF01275521 Effects of the fungicides mancozed and dithianon on mortality and reproduction of the predatory mite Amblyseius andersoni [Elektronische Daten] [Claudio Ioriatti, Edison Pasqualini, Alfeo Toniolli] Laboratory studies using commercial formulations of mancozeb and dithianon at concentrations equivalent to recommended field rates of 200 and 80 g/hl, respectively, were conducted to evaluate toxic effects of these fungicides on the predatory miteAmblyseius andersoni Chant. In short-term tests where females were placed on apple-leaf disks and sprayed with mancozeb, no mortality of adults was observed; however, there was a 34% decrease in fecundity, a 7.1% decrease in egg hatch, and mortality of larvae and protonymphs was 6.7%. In long-term tests, a significant reduction in fecundity was also observed. A decrease in hatch that was dependent on age at time of treatment was found when eggs were treated directly with mancozeb. No effects on mite mortality or reproduction were observed in short-term tests with dithianon. These results suggest that dithianon might be considered as a potential alternative to mancozeb for scab control. Elsevier Science Publishers B.V, 1992 Ioriatti Claudio Istituto Agrario Provinciale, S. Michele all'Adige (TN), v. E. March, 38010, S. Michele a/A (TN), Italy aut Pasqualini Edison Istituto di Entomologia, Universita' di Bologna, Bologna, Italy aut Toniolli Alfeo Istituto di Entomologia, Universita' di Bologna, Bologna, Italy aut Experimental & Applied Acarology Kluwer Academic Publishers 15/2(1992-08-01), 109-116 0168-8162 15:2<109 1992 15 10493 https://doi.org/10.1007/BF01275521 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01275521 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ioriatti Claudio Istituto Agrario Provinciale, S. Michele all'Adige (TN), v. E. March, 38010, S. Michele a/A (TN), Italy aut NATIONALLICENCE 700 1- Pasqualini Edison Istituto di Entomologia, Universita' di Bologna, Bologna, Italy aut NATIONALLICENCE 700 1- Toniolli Alfeo Istituto di Entomologia, Universita' di Bologna, Bologna, Italy aut NATIONALLICENCE 773 0- Experimental & Applied Acarology Kluwer Academic Publishers 15/2(1992-08-01), 109-116 0168-8162 15:2<109 1992 15 10493 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer