Oviposição e dispersão de ninfas de Bemisia tabaci biótipo B em genótipos de tomateiro

Fancelli, Marilene; Vendramim, José Djair; Lourenção, André Luiz

doi:10.1590/s0006-87052008000400016

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…In addition, moderate levels of resistance have been found to be effective when used in combination with insecticides keeping the pest population below economic threshold levels [7]. Several researchers have reported enhanced susceptibility of the insect pest to insecticides on resistant and partially resistant cultivars that reduced the amount of pesticide required for effective control [38,39].…”

Section: Tuta Absoluta Mining Damage As Influenced By Treatment Combimentioning

confidence: 99%

Combining Host Plant Resistance, Selective Insecticides, and Biological Control Agents for Integrated Management of Tuta absoluta

Peris

Jonsson

Arunga

et al. 2020

Advances in Agriculture

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Combination of pest management strategies that minimize pesticide use and conserve natural enemies is important for a sustainable environment. Overreliance on synthetic insecticides in the management of Tuta absoluta has led to pesticide resistance leading to difficulties in managing the pest. In this regard, alternative measures need to be put in place to reduce the effects of this pest. The objective of this study was, therefore, to assess the effectiveness of host plant resistance, biological control, and selective insecticides when used in combination, in the management of T. absoluta in tomato production. The study was set up in a greenhouse in a completely randomized design involving two tomato varieties, an insecticide (chlorantraniliprole), and a biological control agent(Macrolophus pygmaeus), applied singly or in combination. Data were collected on T. absoluta damage from the lower, intermediate, and upper leaves. The results from this study show that a combination of insecticide with a moderately resistant variety had a significantly lower T. absoluta damage as compared with a susceptible variety combined with an insecticide. However, the moderately resistant variety when combined with insecticide showed no effect when the biological control agent was added. The susceptible variety significantly reduced T. absoluta damage when combined with the biological control agent. These results indicate that treatment combinations in insect pest management can be utilized. The present study results indicate that using a moderately resistant variety (Riogrande VF) in combination with the insecticide chlorantraniliprole (Coragen®) and a susceptible variety (Pesa F1) in combination with the biological control agent (M. pygmaeus) can improve T. absoluta management. Under good habitat management, the susceptible variety will perform equally as the moderately resistant variety due to suppression of the T. absoluta populations by natural enemies. These findings show the importance of environmental conservation both by enhancing natural enemy abundance and use of selective insecticide in the management of T. absoluta in tomato production. Combinations in this present study are likely to reduce insecticide doses, thereby reducing the cost of production and enhancing environmental compatibility with natural enemies.

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Section: Tuta Absoluta Mining Damage As Influenced By Treatment Combimentioning

confidence: 99%

Combining Host Plant Resistance, Selective Insecticides, and Biological Control Agents for Integrated Management of Tuta absoluta

Peris

Jonsson

Arunga

et al. 2020

Advances in Agriculture

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“…New shoots, flowers and fruits are also attacked 42 [41]. Plant resistance may occur by antixenosis and antibiosis mechanisms.…”

Section: Tomato Leaf Minermentioning

confidence: 99%

“…Plant resistance may occur by antixenosis and antibiosis mechanisms. Antixenosis is characterizedby lower utilization of the host by insects, for food, oviposition and shelter 43 [42]. 44 Antônio, et al [43]…”

Section: Tomato Leaf Minermentioning

confidence: 99%

Review: Plant Resistance to Agriculture Insect Pests

Moawad

2014

Review of Plant Studies

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Competition and interaction among organisms in nature results to selection for traits which confer added advantage. As a result of such interactions between plants and their natural enemies, plants have developed defensive mechanisms, both chemical and physical, to minimize pest damage. Intensive researches were carried out to identify and isolation the gene responsible for resistance plant to insects' infestation which is used in breeding programs for crops improvement. It can be summarized as follows: 1-Corn ear worm, Helicoverpa zea (Boddie) can't cause damage to certain corn strain due to maysin, a C-glycosyl flavone, and related compounds in the silks that inhibit corn earworm larval growth. Scientist can identify corn chromosome regions associated with silk maysin concentration, and then used it in producing new hybrid. 2-Other insect such as the fall army worm, Spodoptera frugiperda can't cause damage to resistance corn due to some factors as high hemicelluloses content, low protein content and leaf toughness. They can also identify a gene code which is controlled by the resistance traits of corn to the fall army worm. 3-However, the European corn borer, Ostrinia nubilalis (Hubner) can't cause damage to certain corn varieties due to high concentrations of 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) in the leaves of mid-whorl stage plants. Scientist indicated that resistance to the European corn borer was identified in Peruvian corn germplasm and the GEM (Germplasm Enhancement of Maize) corn collection, then make backcross to produce new resistance strain. 4-Other crops as tomato infested by Tuta absoluta (Meyrick (but some tomato varieties as Lycopersicon esculentum can resist it due to antixenosis factor which interrupted tomato leaf miner from feed, oviposition and shelter. 5-Russian wheat aphid, Diuraphis noxia (Mordvilko), can't cause damage to some wheat and barley and others crop due to antibiosis and antixenosis factors. Six sources of resistant wheat, each governed by a different, single gene, have been identified. 6-Two-spotted spider mites, Tetranychus urticae (Acari: Tetranychidae) and Whiteflies, Bemisia tabaci (Hemiptera: Aleyrodidae) are herbivorous pests.

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“…Para isso, torna-se importante o conhecimento do comportamento dos insetos e do mecanismo de transmissão desses patógenos. Alguns estudos relacionando diferentes genótipos de tomateiros com aspectos biológicos e comportamentais de B. tabaci biótipo B, mais especificamente a respeito de atratividade, oviposição (FANCELLI et al, 2003;BALDIN;LOURENÇÃO, 2005;ONGARELLI, 2009;VENDRAMIM, 2010;VASCONCELOS, 2011b), desenvolvimento e ciclo de vida (BALDIN;LOURENÇÃO, 2005;FANCELLI et al, 2005;LOURENÇÃO, 2008; VENDRAMIM; VASCONCELOS, 2011a), têm sido conduzidos no Brasil nas últimas décadas, a fim de encontrar genótipos que apresentem algum tipo de resistência à praga. Em tomateiro, os tricomas são estruturas que mediam interações com insetos como B. tabaci.…”

Section: Introductionunclassified

Aspectos biológicos e comportamentais de <i>Bemisia tabaci</i> biótipo B (Genn.) (Hemiptera: Aleyrodidae) em genótipos de tomateiro e sua relação com o <i>Tomato severe rugose virus</i>

Narita¹,

Vendramim²

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Biological and behavioural aspects of Bemisia tabaci B biotype (Genn.) (Hemiptera: Aleyrodidae) on tomato genotypes and its relation to Tomato severe rugose virus Insect vectors of phytopathogens are responsible by significant losses in agriculture, especially by disseminating microorganisms that cause diseases in host plants. The whitefly Bemisia tabaci B biotype is an important pest in the tomato crop, capable to transmit several virus in this crop. Thus, this study aimed to: verify the resistance to the transmission of the begomovirus Tomato severe rugose virus (ToSRV) by B. tabaci B biotype in tomato genotypes treated and non treated with the insecticide cyantraniliprole; know about insectplant interactions through experiments of feeding and oviposition attractiveness by the insect and probe behaviour of viruliferous adults of B. tabaci biotype B in tomato genotypes monitored by Electrical penetration graph (EPG). It was selected five tomato genotypes: 'Santa Clara' (susceptible to the whitefly), 'Ivety' and 'Carina TY' (resistant to ToSRV), LA1335 and LA716 (resistant to the whitefly), to an initial experiment to select the most susceptible genotype to the insect and to the virus, the most resistant to the virus, and the most resistant to the insect for carry out the others experiments. Thus, it was selected 'Santa Clara' (susceptible to both organisms), 'Ivety' (resistant to ToSRV) and LA716 (resistant to the insect). The attractiveness experiment showed that LA716 repelled the whiteflies, which was considered the least attractive, followed by 'Ivety', and after 'Santa Clara' which had the largest total number of whiteflies. The three cyantraniliprole treated genotypes, and the nontreated genotype LA716 (genetic resistance isolated) were able to reduce ToSRV inoculation by the whiteflies and to cause high mortality of insects, moreover, the cyantraniliprole treated genotypes, and non-treated 'Ivety' had less ToSRV severity than 'Santa Clara', the most susceptible. Through the EPG technique, it was clear that LA716 and the treatment of the three genotypes with cyantraniliprole promoted similar effects in B. tabaci B biotype, in which there was reduction of the number of events of waveform np, probe, waveform C and waveform G per insect, besides of reducting significantly the proportion of individuals that performed the waveforms pd, E1, E2, F, G, ingestion into phloem for long time, short probes, and increase the duration of the waveform np and reduce the duration of probe, waveform C, number of short probes and number of sustained E2 per insect. Moreover, the integration of the LA716 resistance with cyantraniliprole promoted additional effects, such as the reduction of the proportion of whiteflies that performed probe, waveform C and G, in relation to the non-treated genotypes, and an increasing in the duration of waveform np, probe and waveform C per event. Analyzing the results, it can be concluded that LA716 is highly resistant to B. tabaci biotype B. Besides of being less attractive, the genotype promot...

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Oviposição e dispersão de ninfas de Bemisia tabaci biótipo B em genótipos de tomateiro

Cited by 9 publications

References 16 publications

Combining Host Plant Resistance, Selective Insecticides, and Biological Control Agents for Integrated Management of Tuta absoluta

Combining Host Plant Resistance, Selective Insecticides, and Biological Control Agents for Integrated Management of Tuta absoluta

Review: Plant Resistance to Agriculture Insect Pests

Aspectos biológicos e comportamentais de <i>Bemisia tabaci</i> biótipo B (Genn.) (Hemiptera: Aleyrodidae) em genótipos de tomateiro e sua relação com o <i>Tomato severe rugose virus</i>

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