水稲の大規模生産地帯における斑点米カメムシ発生量の予測

规模化水稻产区稻蝽发生预测

• 批准号: 22K05646
• 负责人: 小路 晋作
• 金额: $ 1.58万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K05646/
• 关键词: アカスジカスミカメ; 斑点米; 広域的害虫管理; 畦畔

本研究課題は，牧草地等の害虫発生源が存在しない水田景観におけるアカスジカスミカメ（アカスジ）の広域的管理法の確立を念頭におき，畦畔植生の評価に基づく本種の発生量予測モデルの構築を目的とする．計画初年度である今年度は，新潟県阿賀野市大室地域のコシヒカリ栽培水田（20筆）を調査地として，(1) 畦畔の植生タイプ別占有面積とアカスジ発生量の関係および(2) 畦畔植生の季節変化とアカスジの個体群増殖プロセスとの関連について調査を行った．調査対象とした水田のぞれぞれから半径100m圏内の畦畔について，植生タイプ別の被覆面積と水田内のアカスジの個体数との関係を一般化線形モデルにより分析したが，いずれの変数の影響も検出されず，有意な統計モデルは得られなかった．本種の移動分散力の高さを考慮すると，さらに広い空間スケールでの検討が有効と考えられた．また，畦畔の植生の季節的推移がアカスジの発生量に及ぼす影響を分析したところ，成虫はイネ科植物が連続して出現した畦畔で最も多く，次いでイネ科植物が新たに出現した畦畔で多く捕獲された．一方，幼虫は出穂したイネ科植物が連続して出現した畦畔でのみ捕獲数が多かった．これらより，餌植物の分布の時間的連続性がアカスジの畦畔での発生量に強く影響を及ぼしていることが明らかとなった．なお，当初計画していた「畦畔の植生評価のための簡便な調査法の検討」については，今年度に採用したポイント法にもとづく植生評価を基準に，さらに簡便な手法を次年度に検討することとして実施を見送った．今年度の成果の一部を研究会（北陸病害虫研究会）にて発表し，さらに，研究協力者と次年度計画のためのミーティングを行った．

In this study, the source of insect pests, such as pasture land, exists in the paddy field landscape, the paddy field, the paddy field, the paddy The new plant is located in the Dafu area of Amano City. The cultivation of paddy fields (20 years old) is in the first place. The main results are as follows: (1) the plant growth on the border is different. (2) the plant growth on the border is different. (1) the plant growth on the border is different. (2) the growth of plants on the border during the season is similar to that of the paddy field, which is within the radius of 100m. The number of individuals in the paddy field is different from that in the paddy field, and the number of individuals in the paddy field is different from that in the paddy field. the number of units in the paddy field is different from that in the paddy field, and the number of units in the paddy field has an impact on the analysis. it is intended to make a statistical analysis, and it is intended to make a statistical analysis. This kind of equipment has a high capacity of movement and dispersion in the paddy field, and there is a test in the space environment. With the passage of the border planting season, the number of plants along the border was analyzed, and the number of adults was the most. The number of traps on the border was the most. On one side, the larvae showed that the number of traps on the border was much higher than that on the side of the border. On one side, the larvae showed that the number of traps on the border was much higher than that on the border. The relationship between the distribution of plants and the distribution of plants during the period of time, the growth of plants on the border was strongly affected by the number of plants on the border, and the number of plants on the border was increased. In the original plan, it was planned that there would be no pollution on the side of the border, and this year, the standard standard for plant growth would be established by using the method of environmental monitoring. This year, the results of a research society (the North Disease and Pest Research Society) will show you a list of tables, tables, and research coordinators' plans for the next year.