Effect of host plants on the biology of predatory mite, Neoseiulus longispinosus (Evans) cultured on two spotted spider mite, Tetranychus urticae Koch

Rao, K. Sambasiva; Vishnupriya, R.; Ramaraju, K.

doi:10.5958/0974-4576.2018.00055.5

Cited by 4 publications

(4 citation statements)

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“…The T. urticae population was initiated in mid-March, gradually increased and population peaks appeared in May, June and August and then declined later (mid-October). The first peaks of T. urticae infestation on the three varieties were observed in March (Rao et al2018;Patel et al2020) [11], [12], which is consistent with the present study. In New Zealand, Butcher et al (1987) [13] working on strawberries reported that after the onset of T. urticae infestation, the mite population increased for three to four months and then declined rapidly over a short period, which is what we recorded for the untreated variety.…”

Section: Figure 3 Infestation Evolution Of the Strata Of Royal Majest...supporting

confidence: 91%

Population dynamics of the mite, Tetranychus urticae Koch (acarina: tetranychidae) under acaricide treatment on two varieties of peach and one variety of nectarine in the province of El-Hajeb (Morocco)

BOUCHELTA¹,

ALLAM²

2023

GSC Biol. Pharm. Sci.

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The population dynamics of Tetranychus urticae Koch on two varieties of peach (Prunus persica var. Royal Majestic, and Prunus persica var. Kaweah) and one variety of nectarine (Prunus persica var. nucipersica var. Zephyr) were monitored for three years from 2019 to 2022. The results of this study showed that over the course of these three years, infestation peaks occurred in March and declined later in October. For all three varieties, the infestation profile varied from year to year. The Royal Majestic variety was the most infested by T. urticae, with average infestation percentages of 57.06%, 44.11%, and 50.97%, respectively during the three years. As for the two other varieties, the infestation was less pronounced during the three years with average infestation percentages of 31%, 15.42%, and 15.50% on Kaweah and 5.31%, 29.21%, and 26.06% on Zephyr. The results of intra-plant infestation showed that during that during this study periods, the lower stratum was the one with the highest average infestation percentages, with average infestation percentages of 57.29%, 26.08%, and 28.37% respectively on the Royal Majestic, Zephyr, and Kaweah varieties. Concerning the middle stratum, the percentages of infestation are 53.19%, 19.42%, and 19.96% respectively for the Royal Majestic, Zephyr, and Kaweah varieties. For the upper stratum the percentages of infestation are 47.87%, 11.56%, and 9.54% respectively for the Royal Majestic, Zephyr, and Kaweah varieties.

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Section: Figure 3 Infestation Evolution Of the Strata Of Royal Majest...supporting

confidence: 91%

Population dynamics of the mite, Tetranychus urticae Koch (acarina: tetranychidae) under acaricide treatment on two varieties of peach and one variety of nectarine in the province of El-Hajeb (Morocco)

BOUCHELTA¹,

ALLAM²

2023

GSC Biol. Pharm. Sci.

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“…Several authors reported non-feeding larval stage in different phytoseiid species (Chant 1959; Putman 1962; McMurtry and Scriven 1964; Ma and Laing 1973; Moraes and McMurtry 1981. Shorter developmental period and lower searching efficiency of the larvae might be the reason for its non-feeding nature (Rao et al 2017). In general, the predatory potential of immature life stages of predatory mites was found to be moderate when compared to the consumption rates of adult females (Table 1).…”

Section: Discussionmentioning

confidence: 99%

Predator potential and prey stage preference of Neoseiulus longispinosus (Acari: Phytoseiidae) to life stages of Tetranychus urticae and T. macfarlanei (Acari: Tetranychidae)

Jyothis

Ramani

2023

Acarologia

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Spider mites are considered as a potential threat to varying agricultural crops across the globe. Among the agriculturally important spider mite species, Tetranychus urticae Koch and Tetranychus macfarlanei Baker and Pritchard severely affect crop production and incur heavy yield loss in agriculture sector. As an ecofriendly pest management strategy, biocontrol using phytoseiid predatory mites are gaining significant attention over the past few decades. Evaluation of predatory potential and prey stage preference could provide invaluable information on the predatory efficiency of any predators. Feeding experiments were conducted using the phytoseiid predatory mite, Neoseiulus longispinosus (Evans) on mulberry leaf discs under the laboratory conditions of 30±2ºC, 70±5% Relative Humidity (RH) and a photoperiod of 11 L: 14 D h. After 24 hr of feeding experiment, the nymph and adult female predator exhibited a significant preference in feeding towards the eggs of T. urticae and T. macfarlanei. The larval stage of the predator was found to be non-feeding, thus excluded from the feeding experiment. The order of feeding preference of adult female predator towards different life stages of both the spider mite species were identified as egg>nymph>larva>adult. On the contrary, the predatory nymphal stage exhibited different trend in feeding preference towards the life stages of T. urticae and could be recorded as egg>larva>nymph>adult. For T. macfarlanei, the same could be found as egg>larva=nymph>adult. Surprisingly, irrespective of the life stage differences, N. longispinosus hardly consumed any of the T. macfarlanei adults.

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“…The e cacy of N. longispinosus against T. urticae under laboratory conditions on okra leaves was studied by Rao et al (2017). Results of their study indicated that the release of N. longispinosus at the predator-prey ratios of 1:10, 1:20, and 1:30 could check the rapid multiplication of T. urticae but, the plants which received the predator-prey ratio of 1:50 had a higher number of spider mites (40.56/cm 2 ) with a low pooled mean reduction of 20.62 percent.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of Neoseiulus longispinosus (Evans) in Controlling Spider mite on Cucumber: Laboratory and Field Studies

K.,

C.,

et al. 2023

Preprint

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The cultivation of cucumber (Cucumis sativus L.) is of great economic importance in India and is widely used in various culinary applications. However, its production is threatened by the increasing incidence of spider mite infestation. In this context, the present study evaluated the effectiveness of the predatory mite, Neoseiulus longispinosus (Evans) (Acari: Phytoseiidae), as a biological control agent against the emerging cucumber pest spider mite, Tetranychus macfarlanei Baker & Pritchard (Acari: Tetranychidae). The study involved laboratory and outdoor trials with varied predator-prey ratios of 1:25, 1:50, 1:100, and 1:200. Laboratory trials revealed that complete elimination of prey mites was achieved at 10 and 12 days after predator release at ratios of 1:25 and 1:50, respectively. Recommending ratios of 1:25 and 1:200 to the farmer was deemed uneconomical due to the negative impact on the cost of management. Field trials were conducted with the two most effective predator-prey ratios, 1:50 and 1:100, and both ratios resulted in a more than 99% reduction in the prey mite population 20 days after predator release. The study concludes that N. longispinosus is an effective and sustainable biocontrol agent for spider mites on cucumber plants. Recommending predator-prey ratios of 1:50 or 1:100 to farmers can lead to significant reductions in pest populations without incurring excessively high management costs.

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Effect of host plants on the biology of predatory mite, Neoseiulus longispinosus (Evans) cultured on two spotted spider mite, Tetranychus urticae Koch

Cited by 4 publications

References 0 publications

Population dynamics of the mite, Tetranychus urticae Koch (acarina: tetranychidae) under acaricide treatment on two varieties of peach and one variety of nectarine in the province of El-Hajeb (Morocco)

Population dynamics of the mite, Tetranychus urticae Koch (acarina: tetranychidae) under acaricide treatment on two varieties of peach and one variety of nectarine in the province of El-Hajeb (Morocco)

Predator potential and prey stage preference of Neoseiulus longispinosus (Acari: Phytoseiidae) to life stages of Tetranychus urticae and T. macfarlanei (Acari: Tetranychidae)

Efficacy of Neoseiulus longispinosus (Evans) in Controlling Spider mite on Cucumber: Laboratory and Field Studies

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