Park Seong-Bin, Koo Hyun-Na, Seok Seung-Ju, Kim Hyun-Kyung, Yi Hwi-Jong, Kim Gil-Hah
Department of Plant Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea.
Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Republic of Korea.
Insects. 2023 Mar 27;14(4):322. doi: 10.3390/insects14040322.
(Fabricius) and (Stål) are the major pests that feed on soybean pods, seeds, and fruits. Higher populations and damage occur during the soybean maturity stages (podding to harvest). To compare the feeding behavior of and , we used the six most cultivated cultivars (Daepung-2ho, Daechan, Pungsannamul, Daewon, Seonpung, and Seoritae) in Korea using the electropenetrography (EPG) technique. Both and , the NP (non-penetration), a non-probing waveform, was the shortest in the Pungsannamul (298 and 268 min) and the longest in the Daepung-2ho (334 and 339 min), respectively. The feeding waveforms Pb (phloem feeding: E1-Salivation and E2-Sap feeding) and G (xylem feeding) were the longest in Pungsannamul and the shortest in Daepung-2ho. In addition, as a result of investigating the damage rate by planting six cultivars of beans in the field, as expected, the proportions of damage types B and C were highest in Pungsannamul and lowest in Daepung-2ho. These results reveal that both bug species ingest xylem sap from leaflets and stems using a salivary sheath strategy to acquire water and nutrients from soybean pods/seeds with cell-rupture tactics. This study provides perceptive information to understand the feeding behavior, field occurrence, and damage patterns of and , which may have key implications for the management of hemipteran pests by determining the specificity and susceptibility of host plants.
（法布里修斯）和（斯塔尔）是取食大豆豆荚、种子和果实的主要害虫。在大豆成熟阶段（结荚至收获期）害虫数量更多且造成的损害更大。为了比较（法布里修斯）和（斯塔尔）的取食行为，我们使用电穿透图（EPG）技术，对韩国种植最广泛的六个品种（大凤二号、大韩、丰山萝卜、大元、善丰和雪苔）进行了研究。在（法布里修斯）和（斯塔尔）中，非刺探波形NP（非穿透）在丰山萝卜中最短（分别为298分钟和268分钟），在大凤二号中最长（分别为334分钟和339分钟）。取食波形Pb（韧皮部取食：E1-唾液分泌和E2-汁液取食）和G（木质部取食）在丰山萝卜中最长，在大凤二号中最短。此外，通过在田间种植六个豆类品种调查损害率的结果表明，正如预期的那样，B型和C型损害的比例在丰山萝卜中最高，在大凤二号中最低。这些结果表明，这两种蝽象都通过唾液鞘策略从小叶和茎中摄取木质部汁液，利用细胞破裂策略从大豆豆荚/种子中获取水分和养分。本研究为了解（法布里修斯）和（斯塔尔）的取食行为、田间发生情况和损害模式提供了有价值的信息，这对于通过确定寄主植物的特异性和易感性来管理半翅目害虫可能具有关键意义。
