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13 December 2022 Stink Bug (Hemiptera: Pentatomidae) Occurrence, Reproduction, and Injury to Fruit in an Organic Tomato Crop Bordered by Sorghum
N. C. Leppla, K. J. Stacey, L. M. Rooney, K. M. Lennon, A. C. Hodges
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Abstract

Border rows of grain sorghum were planted along two to four sides of an organic Granadero tomato crop in North Florida to reduce fruit injury caused by native and invasive stink bugs. During the 2-yr study, 14 species of stink bugs were encountered, six only in sorghum: Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae), Thyanta spp., Oebalus pugnax (Fabricius), Chinavia hilaris (Say), C. pensylvanica (Gmelin), and Mormidea pama (Rolston). There were four species only in tomato: Euschistus obscurus (Palisot de Beauvois), E. tristigmus (Say), E. ictericus (L.), and Arvelius albopunctatus (De Geer). The three most abundant pests in tomato were collected in both crops: Nezara viridula (L.), Euschistus servus (Say), and E. quadrator Rolston, along with Proxys punctulatus (Palisot de Beauvois). Nezara viridula and P. guildinii were the most abundant stink bugs on sorghum. The border rows of sorghum did not reduce the total number of stink bug adults or nymphs in the tomato crop, although many more stink bug adults were captured in sorghum than tomato when the sorghum panicles were in the milk to soft dough stage. Generally, 30% of the females in the sorghum and tomato crops were mated and contained more than 15 eggs, indicating they could generate a considerable number of nymphs. Tomato fruit from the plot with sorghum border rows had significantly more punctures than fruit from the plot without sorghum. The stink bugs frequently probed and blemished tomato fruit in all stages of ripeness but fruit covered with probing sites were nevertheless suitable for human consumption.

© The Author(s) 2022. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
N. C. Leppla, K. J. Stacey, L. M. Rooney, K. M. Lennon, and A. C. Hodges "Stink Bug (Hemiptera: Pentatomidae) Occurrence, Reproduction, and Injury to Fruit in an Organic Tomato Crop Bordered by Sorghum," Journal of Economic Entomology 116(1), 144-152, (13 December 2022). https://doi.org/10.1093/jee/toac194
Received: 1 July 2022; Accepted: 16 November 2022; Published: 13 December 2022
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KEYWORDS
Euschistus spp
Nezara viridula
organic tomatoe
stink bug reproduction
tomato fruit injury
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