BIOLOGIA DE &lt;i&gt;Thaumastocoris peregrinus&lt;/i&gt; CARPINTERO E DELLAPÉ (HEMIPTERA: THAUMASTOCORIDAE) EM DEZ ESPÉCIES DE EUCALIPTO

Smaniotto, Márcia Aparecida; Silva, Alexandre da; Cunha, Uemerson Silva da; Garcia, Mauro Silveira

doi:10.5902/1980509827752

Cited by 8 publications

(1 citation statement)

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“…The eucalyptus bronze bug, Thaumastocoris peregrinus Carpintero & Dellapé, 2006 (Hemiptera: Thaumastocoridae: Thaumastocorinae), was registered in Brazil for the first time in the state of Rio Grande do Sul, in 2008. The damages caused by this insect are related to its oral sucking lip device, which it uses to suck the sap from the leaves of plants, which start to turn silver, followed by a tan appearance and, consequently, death (Barbosa et al, 2010;Carpinteiro & Dellapé, 2006;Smaniotto et al, 2017;C. Wilcken et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Potential of Beauveria bassiana formulations to control Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae)

Tedesco

Lozano

Mazaro

et al. 2020

RSD

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This study evaluated the potential of four formulations of the entomopathogenic fungus Beauveria bassiana for the control of Thaumastocoris peregrinus. For this, the leaves of Eucalyptus dunni were immersed in each delivery of B. bassiana, isolated IBCB 66, and also in sterile distilled water containing Tween 80® (0.01%) (control), totaling five treatments, with five repetitions each. These leaves were placed in germination boxes containing 10 insects in each and, subsequently, kept in an air-conditioned room (27 ± 2 ° C, 60 ± 10% RH, and 12-h photophase). Record longevity for seven days. The experiment was carried out with adults and also with 3rd instar nymphs of T. peregrinus. These formulations were tested for resistance induction, using organic soybean seeds (standard) sown in sand. Ten days after emergence, 40 µL of treatment suspension was competent in 2 mm cuts made on the top of the cotyledon. Phytoalexins and phenylalanine ammonia lyase (PAL) were determined. All formulations caused a reduction in the longevity of T. peregrinus when compared to the control, standing out as formulations T1 and T2, both for adults and for 3rd instar nymphs of T. peregrinus. The T2 expansion also promotes an increase in the production of phytoalexins and PAL. Thus, the IBCB 66 isolate from B. bassiana, supplied T1, has the potential to control nymphs and adults of T. peregrinus and is also a potential resistance inducer.

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Section: Introductionmentioning

confidence: 99%