caa a22 4500 386375550 CHVBK 20180307112016.0 cr unu---uuuuu 161130e198910 xx s 000 0 eng 10.1017/S1742758400021846 doi S1742758400021846 pii (NATIONALLICENCE)cambridge-10.1017/S1742758400021846 Host plant modification to insecticide susceptibility in Myzus persicae (Sulz.) [Elektronische Daten] The effects of established phenomena of plant resistance on the levels of tolerance to malathion of an organophosphate resistant strain of Myzus persicae were investigated using topical application insecticide bioassay. Tolerance was significantly decreased when aphids were reared on the moderately aphid-resistant Brussels sprout variety Early Half Tall or on sprout plants given reduced nitrogen fertilization. Differences in insecticide tolerance were found to occur only at older plant ages. It is argued that the differences (less than 50% in LC50 terms) reported are of practical importance, and attention is drawn to much greater differences (5-fold) obtained in experiments at different times of the year. Copyright © ICIPE 1989 Induced plant resistance nationallicence insecticide tolerance nationallicence malathion nationallicence Myzus persicae nationallicence Resistance végétale provoquée nationallicence tolérance insecticide nationallicence malathion nationallicence Myzus persicae nationallicence Mohamad B.M. Department of Horticulture, University of Reading, Reading RG6 2AU U.K. Van Emden H.F. Department of Horticulture, University of Reading, Reading RG6 2AU U.K. International Journal of Tropical Insect Science Cambridge University Press 10/5(1989-10), 699-703 1742-7584 10:5<699 1989 10 JTI https://doi.org/10.1017/S1742758400021846 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1742758400021846 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohamad B.M. Department of Horticulture, University of Reading, Reading RG6 2AU U.K NATIONALLICENCE 700 1- Van Emden H.F. Department of Horticulture, University of Reading, Reading RG6 2AU U.K NATIONALLICENCE 773 0- International Journal of Tropical Insect Science Cambridge University Press 10/5(1989-10), 699-703 1742-7584 10:5<699 1989 10 JTI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge