Dwarfing of Soybean Caused by Citrus Leafhopper, <i>Apheliona ferruginea</i>（Hemiptera: Cicadellidae: Typhlocybinae）

Abstract

Yellowing and dwarfing of soybean plants occurred in an area with a high-density population of the citrus leafhopper Apheliona ferruginea Matsumura Hemiptera: Cicadellidae: Typhlocybinae in Mie Prefecture, Japan. In two laboratory experiments, we examined whether these symptoms were induced by the insect itself or by a pathogen transmitted by it. In Experiment 1, internode lengths were significantly shorter at 17 days after infestation of soybean seedlings by A. ferruginea than in the control plants. In Experiment 2, newer internode and petiole lengths were significantly shorter at 17 and 37 days after infestation than in the control plants, but 20 days after the removal of the insects on Day 17, those of later leaves did not differ significantly from the controls. We conclude that the yellowing and dwarfing of soybean plants infested by A. ferruginea are induced by the insect itself, not by a pathogen transmitted by it, because the occurrence of the symptoms was restricted to the insect infestation period.

Seasonal phenology and damage by Singapora shinshana (Hemiptera: Cicadellidae) and other leafhoppers on ornamental trees in Korea

“…Among other recorded leafhopper species, several of them are of economic importance. For example, A. ferruginea has been implicated as a causal agent or involved in transmitting a pathogen that causes dwarfing of Soybean (Nishino et al 2020); Empoasca spp. are known to cause damage on various crops of economic importance like cotton papaya, tea, and bananas, among others (Atakan 2009;Nakai & Lacey 2017;Kumar & Vishwakarma 2018); J. hyalinus has been generally found to be associated with Acer species and Prunus cerasus, though with minimum impact (Nickel & Remane 2002;Walczak et al 2012); M. dorsalis is a major pest in rice, and transmits tugro virus, rice grassy stunt disease virus, and orange leaf virus in rice (Ramya et al 2017); and P. clyclops is always found associated with orchards, raspberries, and vineyards, and has been touted to be a potential vector of phytoplasma (Chuche et al 2010).…”