Susceptibility of Chrysoperla externa (Hagen, 1861) (Neuroptera: Crysopidae) to insecticides used in coffee crops

Souza, Joseane Rodrigues de; Moreira, Luciano Bastos; Lima, Lucas Lorenzon Resende; Silva, Túlio Guimarães; Braga, Pedro Paulo Malfitano; Carvalho, Geraldo Andrade

doi:10.1007/s10646-020-02261-w

Cited by 7 publications

(3 citation statements)

References 50 publications

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“…The use of neem oil in an integrated pest management program should be carried out carefully. Studies show that depending on the natural enemy, the neem oil exposition caused a significant mortality of Chrysoperla externa Hagen (Souza et al, 2020), but for Proprioseiopsis neotropicus Ehara (Acari: Phytoseiidae) and Phytoseiulus macropilis Banks (Acari: Phytoseiidae) the neem oil was selective (Veronez;Sato;Nicastro, 2012;Silva et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Alternative treatments diminish oviposition and viability of Leucoptera coffeella (Lepidoptera: Lyonetiidae) eggs and larvae on coffee plants

Androcioli

Hoshino

Meneghin

et al. 2021

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The effects of alternative treatments on the oviposition and viability of Leucoptera coffeella eggs and larvae were evaluated. Under controlled conditions, coffee sprouts cv. IAPAR-59, eight months old, were sprayed with brown propolis extract (1%), pyroligneous extract with pepper and garlic (PEPG) (2%), silicate clay (2%), kaolin (5%), lime sulfur (2%), neem oil (1%) and kaolin + neem oil (5% + 1%), distilled water and no treatment. In a first no-choice bioassay, coffee sprouts were sprayed before oviposition and kept in cages, where adult insects within three days after emergence were released. Adults remained in the cages for 24 hours. Eggs were then counted. 10 eggs per sprout were preserved to verify larval mortality. The number of eggs when treated with propolis extract, neem oil, kaolin + neem oil and PEPG decreased in the evaluations. Treatments with neem oil caused greater larval hindrance. Eggs laid on leaves were also sprayed with the treatments. Egg viability was reduced by treatments containing neem oil and lime sulfur. Neem oil treatments resulted in slim adult emergence; intermediate viability with lime sulfur and slight hindrance with silicate clay. Finally, treatments were also sprayed on leaves, hosting first or third instar larvae. Neem treatment caused high mortality for 1st and 3 rd instar larvae, however, this effect was reduced when mixed with kaolin. Nonetheless, these negative effects disappeared when considering the adult survival ratio. Results indicated that propolis extract, PEPG and neem oil treatments are suitable for reducing egg deposition, neem oil considerably diminished larvae survival and adult emergence.

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Section: Discussionmentioning

confidence: 99%

Alternative treatments diminish oviposition and viability of Leucoptera coffeella (Lepidoptera: Lyonetiidae) eggs and larvae on coffee plants

Androcioli

Hoshino

Meneghin

et al. 2021

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“…23 However, this is not straightforward because numerous papers have reported deleterious effects of IGR and other biorational compounds on natural enemies. 16,24,25 Therefore, in order to determine the selectivity (or hazardousness) of insecticides, either old or newer molecules, studies assessing their lethal and sublethal (e.g. effects on cycle duration, fecundity and sex ratio) on natural enemies are required.…”

Section: Introductionmentioning

confidence: 99%

Side effects of insecticides applied to cotton on adult Trichogramma pretiosum by three exposure routes

Costa

Farias

Passos

et al. 2022

Pest Management Science

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BACKGROUND Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) is released in extensive areas cultivated with cotton worldwide, but the use of synthetic insecticides threatens the establishment of augmented populations. Thus, an assessment of insecticides’ effects on T. pretiosum is required to establish their compatibility with mass releases of the parasitoid. We studied in the laboratory the impact of insecticides administered through different exposure routes (direct‐spraying, ingestion and residue contact) on T. pretiosum. Based on their toxicity, the insecticides were rated into four categories (harmless, slightly harmful, moderately harmful and harmful) as per the International Organization for Biological Control. RESULTS The survival, parasitism ability and emergence of the treated adults and offspring (F1 and F2), in addition to the persistence of the toxic effects in semi‐field conditions, were assessed. Teflubenzuron did not reduce female survival and caused a lesser impact on T. pretiosum on both direct‐spraying and ingestion bioassays. In the residue contact bioassay, teflubenzuron and flupyradifurone were rated as harmless and slightly harmful, respectively. The other active substances (chlorfenapyr, thiodicarb and methomyl) were harmful to the parasitoid by all exposure routes and were persistent (with toxicity duration surpassing 30 days). CONCLUSION From these findings, teflubenzuron is the insecticide most compatible with T. pretiosum releases and should be preferred over the other active substances. Further studies with the harmful insecticides (thiodicarb, chlorfenapyr and methomyl) are required to determine their toxicity under field conditions and confirm their incompatibility with T. pretiosum releases.

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“…The thiacloprid + deltamethrin insecticide mixture controls sucking and chewing pests by systemic and contact exposure (Almasi et al ., 2016), which, when combined with biocontrol, has a high impact on the targeted pest species (Momanyi et al ., 2012; Fontes et al ., 2018). However, insecticide use to control a given species has potentially adverse effects on non-targeted organisms, such as parasitoids, predators, and pollinators (Desneux et al ., 2007; Souza et al ., 2020). Also, the outbreak of A. gossypii results from the reduction of natural enemy populations and, in some cases, may result from the stimulation of aphid reproduction by pesticides, a phenomenon known as insecticide-induced hormesis (Guedes and Cutler, 2014; Wang et al ., 2017; Ullah et al ., 2019; 2020).…”

Section: Introductionmentioning

confidence: 99%

Potential demographic impact of the insecticide mixture between thiacloprid and deltamethrin on the cotton aphid and two of its natural enemies

Majidpour

Maroofpour²,

Ghane‐Jahromi³

2022

Bull. Entomol. Res.

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The use of pesticides impairs biological control in the agroecosystems and thus compromises the effectiveness of natural enemies against populations of pest species. The concerns over pesticides should expand beyond mortality and encompass their sublethal effects and their consequences to the target insect species and natural enemies to aid in our understanding of the potential and consequential use of these compounds. The present study aimed to determine the effects of an insecticide mixture on life-history and demographic parameters of the cotton aphid Aphis gossypii Glover (Hemiptera: Aphididae) and two of its main parasitoids – Aphidius flaviventris Kurdjumov (Hymenoptera: Aphelinidae) and Aphidius colemani Viereck (Hymenoptera: Braconidae). Based on the obtained results, thiacloprid + deltamethrin in its lethal concentration dose 20% of the pest population (LC20) significantly affected the cotton aphid for two generations, increasing developmental time and demographic parameters. The LC20 manifested changes in many demographic parameters of the parasitoid A. flaviventris. This concentration also increased preadult and female longevity, total pre-ovipositional period, and mean generation time (T) of A. colemani, but no other demographic parameters were affected. Nonetheless, the insecticide mixture did not affect the parasitism rate of A. colemani. Thus, the thiacloprid + deltamethrin mixture significantly impaired the cotton aphid population and its parasitoid A. flaviventris. Therefore, the use of thiacloprid + deltamethrin is not encouraged for controlling the parasitoid A. flaviventris, but it is a relatively safe compound for A. colemani.

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Susceptibility of Chrysoperla externa (Hagen, 1861) (Neuroptera: Crysopidae) to insecticides used in coffee crops

Cited by 7 publications

References 50 publications

Alternative treatments diminish oviposition and viability of Leucoptera coffeella (Lepidoptera: Lyonetiidae) eggs and larvae on coffee plants

Alternative treatments diminish oviposition and viability of Leucoptera coffeella (Lepidoptera: Lyonetiidae) eggs and larvae on coffee plants

Side effects of insecticides applied to cotton on adult Trichogramma pretiosum by three exposure routes

Potential demographic impact of the insecticide mixture between thiacloprid and deltamethrin on the cotton aphid and two of its natural enemies

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