caa a22 4500 386375860 CHVBK 20180307112018.0 cr unu---uuuuu 161130e198904 xx s 000 0 eng 10.1017/S1742758400010262 doi S1742758400010262 pii (NATIONALLICENCE)cambridge-10.1017/S1742758400010262 Effects of cassava pubescence on the behaviour, post-embryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Homoptera: Pseudococcidae) [Elektronische Daten] Role of trichome density in cassava resistance to mealybug, Phenacoccus manihoti Matile-Ferrero was evaluated on the apex, the first expanded leaf and the stem in pubescent and glabrous cassava varieties. Pubescence significantly retarded the rate of settling and establishment of P. manihoti. The weight of the developing larvae was also affected becoming more pronounced at the pre-ovipositing adult stage. However, the relationship between pubescence and P. manihoti weight was not significant. Moreover, the significant differences in weight at the preovipositing adult stage was not reflected in the corresponding fecundity on the glabrous and pubescent varieties. Pubescence accounted for only 18% of the differences in observed fecundity. There was also no significant difference in the development period of the mealybug on glabrous and pubescent varieties. Pubescence appeared to be a mechanical irritant only. Copyright © ICIPE 1989 Cassava mealybug nationallicence glabrous/pubescent plants nationallicence feeding nationallicence weight nationallicence fecundity nationallicence hydrocyanic acid nationallicence Kasu T. Department of Agricultural Biology, University of Ibadan, Nigeria Odebiyi J.A. Department of Agricultural Biology, University of Ibadan, Nigeria Lema K.M. International Institute of Tropical Agriculture (IITA) Ibadan, Nigeria International Journal of Tropical Insect Science Cambridge University Press 10/2(1989-04), 123-129 1742-7584 10:2<123 1989 10 JTI https://doi.org/10.1017/S1742758400010262 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1742758400010262 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kasu T. Department of Agricultural Biology, University of Ibadan, Nigeria NATIONALLICENCE 700 1- Odebiyi J.A. Department of Agricultural Biology, University of Ibadan, Nigeria NATIONALLICENCE 700 1- Lema K.M. International Institute of Tropical Agriculture (IITA) Ibadan, Nigeria NATIONALLICENCE 773 0- International Journal of Tropical Insect Science Cambridge University Press 10/2(1989-04), 123-129 1742-7584 10:2<123 1989 10 JTI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge