Oncideres saga Dalman: first record damaging Stryphnodendron adstringens Mart. Coville (Fabaceae) in Brazil

Abstract

Oncideres females girdle tree branches of the Fabaceae family, interrupting the sap flow and turning the wood conditions ideal for their larvae development. The bark of Stryphnodendron adstringens (Mart.) Coville, a species native to the Brazilian Cerrado, is widely used in the traditional medicine. The objectives were to report, for the first time, Oncideres saga (Dalman), using S. adstringens as a host and to describe the pattern of branch girdling and oviposition distribution by this insect on these branches. The diameter at the base and the length of the girdled branches were measured and the number of incisions made by the O. saga females to oviposit, per branch section (basal, median and apical), counted. The emerged specimens were counted and the diameter of the exit holes measured. The average diameter at the base of the girdled branches was 2.5 ± 0.16 cm and the length was 90.6 ± 4.6 cm. The average number of incisions per branch was 37.7 ± 2.7. Damage by O. saga can reduce the growth and cause losses on S. adstringens, a tree with great extractivism potential.,

Arthropods as possible losses and solutions on Terminalia argentea (Combretaceae) saplings

“…Oncideres saga (Dalman 1823) and Acanthophorus confinis (Castelnau 1840) are important pests of Stryphnodendron adstringens (Mart.) Coville (Fabales: Fabaceae) (Soares et al, 2022) and of Acacia senegal (Hasbab), and Acacia seyal (Talh) (Fabales: Fabaceae) plants, respectively (Jamal, 1994). Cratosomus sp.…”

Egg characterization and laying pattern of Oncideres saga (Coleoptera: Cerambycidae) in Inga edulis (Fabaceae)

“…Oncideres saga (Dalman, 1823) (Coleoptera: Cerambycidae), a neotropical and common twig girdler (Paro et al, 2014), occurs in Argentina, Brazil and Paraguay (Corrêa et al, 2019;Monné, 2020). This insect has economic importance due to damages caused to trees used in urban afforestation (Coutinho, 1997;Soares et al, 2021) and commercial plantations (Cordeiro, 2008). The control of this insect group depends, exclusively, on periodic inspections to remove and burn infested branches in tree crops (Ouali-N' Goran et al, 2020).…”