Pest status and population dynamics of the lucerne leaf beetle, Gonioctena fornicata (Brüggemann, 1873) (Coleoptera: Chrysomelidae), in a lucerne field in Adana Province, Turkey

Year 2021, , 41 - 51, 01.03.2021

Ekrem Atakan , Yusuf Dağ

https://doi.org/10.16970/entoted.758296

Abstract

The lucerne leaf beetle, Gonioctena fornicata (Brüggemann, 1873) (Coleoptera: Chrysomelidae), is an important pest of lucerne in Europe and several parts of Turkey. Its damage and thus the loss of yield due to this pest insect is unknown. This study was conducted at Çukurova University, Faculty of Agriculture Research and Application Farm in Adana Province, Turkey in 2017 and 2018. It was found that the pest had one generation per year. Especially the larvae of G. fornicata was found to feed extensively on the leaves, shoots, flowers and seeds of lucerne, almost turning them into leafless. In the untreated plots, there was about 148% loss in both fresh weight and dry weight in 2017 caused by this pest species and up to 27% loss in 2018. Gonioctena fornicata negatively affected the fresh and dry weight yields. It is estimated that the yield losses were 3.48 t/ha. Although the yield difference between the treated and untreated plots was lower than expected, the cost of loss of yield was still high. Economic loss in the untreated plot was about 4250 TRY/ha (about 545 USD/ha as of December 2020).

Keywords

Adana, alfalfa, damage, Gonioctena fornicata, population dynamic

Supporting Institution

Unit of the Scientific Research Project, University of Çukurova

Project Number

Project Number: FYL-2018-10684

Thanks

We thank to Research Assistant Şeyda Şi̇mşek (Plant Protection Department, Faculty of Agriculture, University of Bozok, Yozgat) for the analysis. This study was funded by Unit of the Scientific Research Project, University of Çukurova (Project Number: FYL-2018-10684).

Adana İli (Türkiye)’nde bir yonca tarlasında Yonca yaprakböceği, Gonioctena fornicata (Brüggemann, 1873) (Coleoptera: Chrysomelidae)’nin zarar durumu ve popülasyon dinamiği

Abstract

Yonca yaprakböceği, Gonioctena fornicata (Brüggemann, 1873) (Coleoptera: Chrysomelidae) Avrupa ve Türkiye’nin bazı yerlerinde yoncanın önemli bir zararlısıdır. Buna karşın, bu böcek neden olduğu zarar düzeyi ve verim kayıpları bilinmemektedir. Bu çalışma, Adana ilinde Çukurova Üniversitesi Ziraat Fakültesi Araştırma ve Uygulama Çiftliği’nde 2017 ve 2018 yıllarında yürütülmüştür. Zararlının bir döl verdiği bulunmuştur. Yonca yaprakböceği’nin özellikle larvalarının bitkilerin yaprak, sürgün, çiçek ve tohumlarında obur bir şekilde beslenerek bitkileri adeta yapraksız duruma getirdiği görülmüştür. İlaçsız parsellerde 2017 yılında yaş ağırlıkta %14.7, kuru ağırlıkta, %14.6 kayıp meydana gelmiştir. 2018 yılında ise yaş ağırlıkta %26.3, kuru ağırlıkta %27.4 kayıplar saptanmıştır. Gonioctena fornicata’nın yonca deneme alanında mart-mayıs döneminde ana zararlı duruma geldiği belirlenmiştir. Gonioctena fornicata kuru ve yaş ağırlığı olumsuz etkilemiştir. Bu böcek nedeniyle hektara verim kaybı 3480 kg’dır. İlaçlı ve ilaçlı parseller arasında verim kayıpları beklenenden daha düşük olmasına karşın, verim kaybının maliyeti yüksek olmuştur. İlaçlanmayan parselde ekonomik kaybın parasal değeri 4250 TL/ha olup, bunun Amerikan doları karşılığı, Aralık 2020 itibarıyla 545 US$/ha’dır.

Keywords

Adana, yonca, zarar, Gonioctena fornicata, popülasyon dinamiği

Project Number

Project Number: FYL-2018-10684

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