INSECTICIDAL EFFICACY OF AQUEOUS EXTRACTS OF Ricinus communis, Baccharis trimera AND Chenopodium ambrisioides ON ADULTS OF  Alphitobius diaperinus

Charlie-Silva, Ives; Souza, Luciano Melo de; Pereira, Cristiane Carvalho; Mazzonetto, Fábio; Belo, Marco Antônio de Andrade

doi:10.15361/2175-0106.2019v35n1p07-11

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…The EOs of Baccharis species are known for the predominance of monoterpenoids and sesquiterpenoids 1 , 4 , 5 , which have been reported to have the potential to cause mortality in different larval stages 31 , malformations in adults 31 , and to repel insects 7 . Of the different Baccharis species examined in this study, the only one whose oil has been reported in the literature as having insecticidal properties is B. trimera , which has been shown to be effective against pests of stored products 32 .…”

Section: Discussionmentioning

confidence: 98%

Insecticidal and oviposition deterrent effects of essential oils of Baccharis spp. and histological assessment against Drosophila suzukii (Diptera: Drosophilidae)

Souza

Bernardi

Melo

et al. 2021

Sci Rep

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The diverse flora of the Atlantic Forest is fertile ground for discovering new chemical structures with insecticidal activity. The presence of species belonging to the genus Baccharis is of particular interest, as these species have shown promise in pest management applications. The objective of this study is to chemically identify the constituents expressed in the leaves of seven species of Baccharis (B. anomala DC., B. calvescens DC., B. mesoneura DC., B. milleflora DC., B. oblongifolia Pers., B. trimera (Less) DC. and B. uncinella DC.) and to evaluate the toxicological and morphological effects caused by essential oils (EOs) on the larvae and adults of Drosophila suzukii (Diptera: Drosophilidae). Chemical analysis using gas chromatography-mass spectrometry (GC–MS) indicated that limonene was the main common constituent in all Baccharis species. This constituent in isolation, as well as the EOs of B. calvescens, B. mesoneura, and B. oblongifolia, caused mortality in over 80% of adults of D. suzukii at a discriminatory concentration of 80 mg L−1 in bioassays of ingestion and topical application. These results are similar to the effect of spinosyn-based synthetic insecticides (spinetoram 75 mg L−1) 120 h after exposure. Limonene and EOs from all species had the lowest LC50 and LC90 values relative to spinosyn and azadirachtin (12 g L−1) in both bioassays. However, they showed the same time toxicity over time as spinetoram when applied to adults of D. suzukii (LT50 ranging from 4.6 to 8.7 h) in a topical application bioassay. In olfactometry tests, 92% of D. suzukii females showed repellent behavior when exposed to the EOs and limonene. Likewise, the EOs of B. calvescens, B. mesoneura, and B. oblongifolia significantly reduced the number of eggs in artificial fruits (≅ 7.6 eggs fruit−1), differing from the control treatment with water (17.2 eggs fruit−1) and acetone (17.6 eggs fruit−1). According to histological analyses, the L3 larvae of D. suzukii had morphological and physiological alterations and deformations after exposure to treatments containing EOs and limonene, which resulted in high larval, pupal, and adult mortality. In view of the results, Baccharis EOs and their isolated constituent, limonene, proved to be promising alternatives for developing bioinsecticides to manage of D. suzukii.

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Section: Discussionmentioning

confidence: 98%

Insecticidal and oviposition deterrent effects of essential oils of Baccharis spp. and histological assessment against Drosophila suzukii (Diptera: Drosophilidae)

Souza

Bernardi

Melo

et al. 2021

Sci Rep

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Utilização do pó de caulim e mastruz sobre Alphitobius diaperinus (Panzer, 1797) (Coleoptera: Tenebrionidae)

Arruda

Isidro

Abreu

et al. 2021

RSD

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A avicultura brasileira vem evoluindo a cada ano, com isso surgiram também sérios problemas relacionados aos insetos-praga, como é o caso do Alphitobius diaperinus. Objetivou-se avaliar o efeito da ação bioinseticida do pó de caulim e de mastruz para o controle do Alphitobius diaperinus (Panzer, 1797) (Coleóptera: Tenebrionidae) sobre cama de aviário em laboratório. Calculou-se a eficiência do pó de caulim pelo método de Abbott (1925). Avaliou-se o potencial do pó em repelir A. diaperinus, pelo Índice de Repelência (IR). Para a associação do pó de caulim e mastruz verificou-se também o índice de repelência e foi utilizado a menor dose do pó de caulim que se mostrou mais eficiente e econômica. Também, avaliou-se a eficiência da associação nas mesmas condições testadas anteriormente. De acordo com os resultados, pode-se concluir que o pó de caulim na concentração de 0,50 g/cm-2 mostrou-se mais eficiente com uma eficiência de 59,86% aos sete dias e 100% aos 21 dias dos períodos avaliados. Verificou-se ainda que o Índice de Repelência obtidos nos tratamentos com o uso do caulim variaram de 0,25 a 0,75 g/cm2 e foram todos menores que 1, indicando repelência destas concentrações. Verificou-se também, que o IR nos tratamentos da menor dose do caulim associados com as concentrações do mastruz foram todos menores que 1, indicando repelência sobre os insetos de A. diaperinus. Quanto a eficiência da associação, verificou-se que a concentração de 0,50 g/cm-2 do pó de caulim associado com 1,00 g/cm-2 foi a mais eficiente no controle de Alphitobius diaperinus.

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INSECTICIDAL EFFICACY OF AQUEOUS EXTRACTS OF Ricinus communis, Baccharis trimera AND Chenopodium ambrisioides ON ADULTS OF Alphitobius diaperinus

Cited by 2 publications

References 11 publications

Insecticidal and oviposition deterrent effects of essential oils of Baccharis spp. and histological assessment against Drosophila suzukii (Diptera: Drosophilidae)

Insecticidal and oviposition deterrent effects of essential oils of Baccharis spp. and histological assessment against Drosophila suzukii (Diptera: Drosophilidae)

Utilização do pó de caulim e mastruz sobre Alphitobius diaperinus (Panzer, 1797) (Coleoptera: Tenebrionidae)

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