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1 January 2018 Management of the Stink Bugs Dolycoris baccarum (L.) and Piezodorus lituratus (F.) (Hemiptera: Pentatomidae), and Chalky Spot Damage on Red Lentil in Southeast Anatolia Region, Turkey
Cetin Mutlu, Musa Buyuk, Sedat Eren, Vedat Karaca, Mehmet Duman, Yunus Bayram
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Abstract

Chalky spot damage caused by the stink bugs Dolycoris baccarum (L.) and Piezodorus lituratus (F.) (Hemiptera: Pentatomidae) is a serious problem for red lentil production in Southeast Anatolia, Turkey. This study aimed to determine spraying time against stink bugs, based on lentil developmental stages and evaluate potential agronomic methods (early vs. timely harvest and traditional harvest with sickle bar mower vs. combine harvester) to reduce chalky spot. Field trials were carried out during 2011–2012 in three provinces of Southeast Anatolia (Diyarbakir, Mardin and Sanliurfa).

Chalky spot damage was initiated at the R6 stage (full seed, seed on nodes 10-13 fill the pod cavities) when the stink bug nymphs started to be observed and the plant had soft immature seeds that were more susceptible to feeding by stink bugs. In early harvested lentil fields, the percentage of chalky spot damage was 0.60 and 0.20 in Diyarbakir and Sanliurfa provinces, respectively. It was lower than that of timely harvest. On the other hand, damaged seed percentage significantly reduced by changing the harvesting from traditional to combine harvesting and damage ratio was 0.90 and 0.00 in Diyarbakir and Mardin provinces, respectively. We conclude that the management to protect lentil crops from stink bug infestations should be initiated at the R6 growth stage, and that crops should be harvested a week earlier using combine harvester to reduce stink bug density and chalky spot damage.

© 2018 Kansas Entomological Society
Cetin Mutlu, Musa Buyuk, Sedat Eren, Vedat Karaca, Mehmet Duman, and Yunus Bayram "Management of the Stink Bugs Dolycoris baccarum (L.) and Piezodorus lituratus (F.) (Hemiptera: Pentatomidae), and Chalky Spot Damage on Red Lentil in Southeast Anatolia Region, Turkey," Journal of the Kansas Entomological Society 91(1), 40-50, (1 January 2018). https://doi.org/10.2317/0022-8567-91.1.40
Received: 6 December 2017; Accepted: 18 May 2018; Published: 1 January 2018
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