Capacidade reprodutiva e preferência da traça-das-crucíferas para diferentes brassicáceas

Bortoli, Sérgio Antônio De; Vacari, Alessandra Marieli; Goulart, Roberto Marchi; Santos, Rudã Fernandes Brandão; Volpe, Haroldo Xavier Linhares; Ferraudo, Antônio Sérgio

doi:10.1590/s0102-05362011000200009

Cited by 12 publications

(9 citation statements)

References 14 publications

(2 reference statements)

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“…The diamondback moth Plutella xylostella (L.) (Lepidoptera: Plutellidae) is considered the main pest affecting brassica in all producing countries. This moth has high reproductive capacity and rapid selection for resistance to insecticides, resulting in dramatic crop productivity losses and significantly increased control costs (De Bortoli et al, 2011;Zalucki et al, 2012). Biological control is indicated as an emergent and efficient alternative for reducing insect pest infestations.…”

Section: Introductionmentioning

confidence: 99%

Predation of diamondback moth larvae and pupae by Euborellia annulipes

Nunes

Dantas

Figueiredo

et al. 2018

Agraria

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Diamondback moth, Plutella xylostella, is considered the most important pest species of brassica crops and Euborellia annulipes can exhibit potential for its control. This work recorded the consumption of 4 th-instar larvae and pupae of P. xylostella by nymphs and adult females of the ring-legged earwig E. annulipes at different ages: 2, 4, 6, 8 and 10 days old. Nymphs in the 3 rd-instar and females of E. annulipes consumed daily more P. xylostella larvae than pupae. The consumption of diamondback moth pupae became constant as the 5 th-instar nymphs of the predator develop. In the other hand, the consumption of larvae decreases when nymphs are closer to molt. Female, regardless of its age, consumed more larvae than pupae of P. xylostella.

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Section: Introductionmentioning

confidence: 99%

Predation of diamondback moth larvae and pupae by Euborellia annulipes

Nunes

Dantas

Figueiredo

et al. 2018

Agraria

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“…DBM infestation accounts for management costs and production losses of US$ 4-5 billion (Zalucki et al 2012). In Brazil, this pest attacks mainly the most cultivated brassicas, that is, cabbage and kale (Castelo Branco et al 2003;Silva-Torres et al 2010;De Bortoli et al 2011b), but will fed on all brassicas.…”

Section: Introductionmentioning

confidence: 99%

Interactions of Bacillus thuringiensis bioinsecticides and the predatory stink bug Podisus nigrispinus to control Plutella xylostella

Magalhães

Vacari

Laurentis

et al. 2014

J Applied Entomology

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The diamondback moth (DBM), Plutella xylostella (L.), is a major pest of brassica crops worldwide. Control of this pest is difficult because it rapidly develops resistance to synthetic and biological insecticides and because of the effects of insecticides on its natural enemies. Podisus nigrispinus (Dallas) is a predator that feeds on its prey, as well as on the host plants of its prey, and is an important biological control agent of DBMs. The aim of this study was to determine the susceptibility of P. xylostella larvae to two bioinsecticides: the HD1 strain of Bacillus thuringiensis (B. thuringiensis var. kurstaki) and the commercial product Agree â (B. thuringiensis var. aizawai CG 91). In addition, the impact of these bioinsecticides on the P. nigrispinus consumption of DBM larvae and phytophagy was evaluated. Both the HD1 strain and Agree â caused 100% mortality in P. xylostella larvae.P. nigrispinus nymphs fed only with kale leaves (Brassica oleracea var. acephala) sprayed with water, the HD1 strain, or Agree â did not complete their nymphal development. When prey was also available, P. nigiripinus fed on kale leaves to obtain water. Both nymphs and adults of P. nigrispinus consumed greater numbers of DBM larvae, and fed less on kale leaves, when sprayed with the HD1 strain or Agree â . These results suggest a positive interaction of B. thuringiensis-based products and the predator P. nigrispinus in the control of P. xylostella larvae.

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“…The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is a major pest of crucifers growing in the tropical areas of the world (Dickson et al, 1990) and its population may increase up to 60-fold from one generation to another (De Bortoli et al, 2011a). The successive and frequent use of insecticides to control the diamondback moth has selected for resistant populations of this species (Castelo Branco & Gatehouse, 2001), so an alternative control is needed, such as the use of entomophagous insects.…”

Section: Introductionmentioning

confidence: 99%

Relationship between predation byPodisus nigrispinusand developmental phase and density of its prey,Plutella xylostella

Vacari¹,

Bortoli²,

Torres

2012

Entomologia Exp Applicata

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This study evaluated the predation by Podisus nigrispinus (Dallas) (Hemiptera: Pentatomidae) at various densities of larvae and pupae of the pest Plutella xylostella (L.) (Lepidoptera: Plutellidae). We tested predator behavior of female P. nigrispinus at six experimental densities (1, 5, 10, 15, 20, or 25 prey items in a 1‐l transparent plastic container, replicated 15 times for each density) of both the fourth instar and pupae of P. xylostella. The number of prey consumed was monitored every 15 min for 12 h and was subsequently monitored at 24 h. Podisus nigrispinus females were weighed before and after the experiments to determine the effect of different densities of prey on their weight gain. Female predators had a Type‐II functional response, with attack rate estimated at 1.387 and 0.260 and a handling time of 0.091 and 0.183 h−1 for larvae and pupae, respectively. Podisus nigrispinus consumed on average 10.9 larvae or 5.5 pupae in 24 h. Despite the similarity of the response type, P. nigrispinus preferred to feed on larvae, rather than on pupae.

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Capacidade reprodutiva e preferência da traça-das-crucíferas para diferentes brassicáceas

Cited by 12 publications

References 14 publications

Predation of diamondback moth larvae and pupae by Euborellia annulipes

Predation of diamondback moth larvae and pupae by Euborellia annulipes

Interactions of Bacillus thuringiensis bioinsecticides and the predatory stink bug Podisus nigrispinus to control Plutella xylostella

Relationship between predation byPodisus nigrispinusand developmental phase and density of its prey,Plutella xylostella

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