Treatment by glyphosate-based herbicide alters life history parameters of the rose-grain aphid Metopolophium dirhodum.
Glyphosate is the number one herbicide in the world. We investigated the sub-lethal effects of this herbicide on the aphid Metopolophium dirhodum (Walker), using an age-stage, two-sex life table approach. Three concentrations of the herbicide (low - 33.5, medium - 66.9 and high - 133.8 mmol dm(-3) of active ingredient) and distilled water as the control were used. The LC50 of the IPA salt of glyphosate on M. dirhodum was equivalent to 174.9 mmol dm(-3) of the active ingredient (CI95: 153.0, 199.0). The population parameters were significantly negatively affected by herbicide application, and this negative effect was progressive with the increasing concentration of the herbicide. A difference of two orders of magnitude existed in the predicted population development of M. dirhodum between the high concentration of the herbicide and the control. This is the first study that comprehensively documents such a negative effect on the population of an herbivorous insect.
Crop Research Institute, Group Functional Diversity of Invertebrates and Plants in Agro-Ecosystems, Drnovská 507, Prague 6 - Ruzyně, 161 06 Czech Republic.
Pavel
P
Saska
Crop Research Institute, Group Functional Diversity of Invertebrates and Plants in Agro-Ecosystems, Drnovská 507, Prague 6 - Ruzyně, 161 06 Czech Republic.
Jiří
J
Skuhrovec
Crop Research Institute, Group Functional Diversity of Invertebrates and Plants in Agro-Ecosystems, Drnovská 507, Prague 6 - Ruzyně, 161 06 Czech Republic.
Jan
J
Lukáš
National Chung Hsing University, Department of Entomology, 250 Kuo-Kuang Rd., Taichung, 40227, Taiwan, Republic of China.
Hsin
H
Chi
National Chung Hsing University, Department of Entomology, 250 Kuo-Kuang Rd., Taichung, 40227, Taiwan, Republic of China.
Shu-Jen
SJ
Tuan
Crop Research Institute, Group Functional Diversity of Invertebrates and Plants in Agro-Ecosystems, Drnovská 507, Prague 6 - Ruzyně, 161 06 Czech Republic.
Alois
A
Honěk
D000375:Aging; D000818:Animals; D001042:Aphids / Q000187:drug effects* / Q000254:growth & development*; D005260:Female; D005298:Fertility / Q000187:drug effects; D005998:Glycine / Q000031:analogs & derivatives* / Q000633:toxicity; D006540:Herbicides / Q000633:toxicity*; D008018:Life Cycle Stages / Q000187:drug effects*; D012098:Reproduction / Q000187:drug effects; D027826:Rosa; D016019:Survival Analysis; D000097797:Glyphosate
D005998:Glycine; D006540:Herbicides; D000097797:Glyphosate