Responses of Whitefly, Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae) Population on Tomato Lycopersicon esculentnm Mixed with Other Crops under Glasshouse Conditions

Mansour, Safaa; Roff, M. N. Mohamad; Saad, Khalid A.; Abuzid, Ismail; Idris, A. B.

doi:10.1016/j.apcbee.2012.11.009

Cited by 4 publications

(5 citation statements)

References 9 publications

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“…However, the plants have to match the requirements for intercropping, for example the cultural conditions of the crop. Mansour et al . have already shown that intercropping tomato plants with okra, A. esculentus , and brinjal, S. melongena , decreased the whitefly infestation rate as compared with monocropped tomato.…”

Section: Discussionmentioning

confidence: 97%

Naturally occurring bioactive compounds from four repellent essential oils against Bemisia tabaci whiteflies

Déletré

Chandre

Barkman

et al. 2015

Pest Management Science

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Section: Discussionmentioning

confidence: 97%

Naturally occurring bioactive compounds from four repellent essential oils against Bemisia tabaci whiteflies

Déletré

Chandre

Barkman

et al. 2015

Pest Management Science

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“…It is considered one of the most important tomato pests in the tropical and subtropical zone, where it causes great losses in the crop due to direct feeding and transmits geminiviruses. 1 To mitigate loss due to infestation, many farmers use synthetic chemical insecticides. However, chemical whitefly control is expensive and not always effective.…”

Section: Introductionmentioning

confidence: 99%

The insecticidal potential of neem extracts (Azadirachta indica JUUS) against whiteflies (B. tabaci) in tomato crops

Graciano-Obeso¹,

Pollorena-López²,

Humarán-Sarmiento³

2022

JABB

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The tomato (Solanum lycopersicum) is one of the main vegetables grown in Sinaloa. This crop is affected by pest insects, such as the white fly (Bemisia tabaci). The objective was to evaluate the effect of different doses of neem-based biorational insecticide on the population density of whiteflies. A completely randomized design was established to evaluate the population density of whitefly adults. The treatments evaluated were different doses of neem leaf extracts (NLE): (T1) control, (T2) 200 g NLE•L-1, (T3) 300 g NLE•L-1, (T4) 400 g NLE•L-1 and (T5) 500 g NLE•L-1. An analysis of covariance was applied to the data obtained and the difference between the means was evaluated using the Tukey test with an α=0.05. Neem extracts had an effect on population density (p≤0.05), by reducing the population as the concentration of the extracts increased. T5 presented the highest reduction with 43.56%±1.6, while T4 presented a reduction of 39.27%±1.7, compared to the control. However, the application of T5 causes damage to the plant, so it can be considered that T4 is more suitable for its application. Therefore, neem extracts had an effect in controlling the whitefly population.

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“…A few studies have investigated the relationship between plant species complexity and whitefly plant utilisation efficiency (Bernays 1999;Smith et al 2001;Bird and Krüger 2007;Roff et al 2012;Mansour et al 2012), and most indicate that, at least for some performance parameters and host plant mixtures, plant diversity negatively impacts whiteflies. This conclusion reflects the wider relationship between plant species diversity and herbivore plant utilisation efficiency (reviewed in Risch 1983;Andow 1991;Stamps and Linit 1998;Schlapfer and Schmid 1999;Hooks and Johnson 2003;Barbosa et al 2009;Letourneau et al 2011;Cardinale et al 2011;Agrawal et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Control of tomato whiteflies using the confusion effect of plant odours

Tosh

Brogan

2014

Agron. Sustain. Dev.

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Glasshouse tomato production is reduced by the whitefly Trialeurodes vaporariorum, a major worldwide pest of glasshouse crops. Whitefly control is achieved using pesticides or parasitoids, which have drawbacks. There is thus a need for other control methods. For instance, the use of volatile compounds from plant odours could profoundly change the behaviour of plant-eating insects. This practice should be safe because plant odours are usually harmless to humans. Therefore, we have studied the effect of plant volatiles on whiteflies feeding on tomato plants. The rationale was to use the confusion effect by supplying whiteflies with a super-abundance of volatiles. We removed plant headspace volatiles from multiple whitefly host plants. Then, we presented these volatiles to whiteflies feeding on tomato plants. At the same time, whitefly stylet penetration is monitored using electrical penetration graphs (EPG). Plant colonisation, egg laying and honeydew production are analysed in separate experiments. Data are compared to controls in which extracted volatiles from tomato and air alone are presented to the whiteflies. The only significant effect produced by exposure to multiple-host volatiles is a pronounced reduction in the incidence of phloem-related waveforms during the 15-h EPG recording. This represents a delay in, rather than a cessation of, phloem-related activities as there is no related reduction in long-term performance. The confusion effect thus does not appear to exert strong effects on whitefly behaviour here.

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Responses of Whitefly, Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae) Population on Tomato Lycopersicon esculentnm Mixed with Other Crops under Glasshouse Conditions

Cited by 4 publications

References 9 publications

Naturally occurring bioactive compounds from four repellent essential oils against Bemisia tabaci whiteflies

Naturally occurring bioactive compounds from four repellent essential oils against Bemisia tabaci whiteflies

The insecticidal potential of neem extracts (Azadirachta indica JUUS) against whiteflies (B. tabaci) in tomato crops

Control of tomato whiteflies using the confusion effect of plant odours

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