Intraguild predation between two aphidophagous coccinellids, Hippodamia variegata (G.) and Coccinella septempunctata L. (Coleoptera: Coccinellidae): the role of prey abundance

Khan, Muhammad Hamayoon; Yoldaş, Zeynep

doi:10.1016/j.biocontrol.2018.07.011

Cited by 18 publications

(8 citation statements)

References 46 publications

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“…This was observed between H. convergens and Coccinella septempunctata (L.) (Coleoptera: Coccinellidae) by Khan &Yoldas. 16 Nonetheless, our results show that the presence of bio-control agents resulted in a general decrease in the populations of insect pests. Our results concur with Tuovinen & Lindqvist 30 who concluded that the presence of natural enemies in strawberry production contribute to the control of Tu spider-mite and thrips.…”

Section: Effect Of the Release Of Bio-control Agents In The Populatiomentioning

confidence: 61%

“…It is also necessary to consider the effect of the predators on inter and intra-species populations. Khan &Yoldas 16 reported that Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae), in the absence of prey, such as aphids, prefers feeding on coccinellid eggs, of both same (intra) and other (inter) species.The changes in the feeding preferences observed in this study might be related to the small size of larvae and eggs; as a consequence, adults of aphids and mites were depredated by convergent lady beetle and the green lacewing possibly the small size of the nymphs and eggs of Tu and Tv, cause their food preference to be directed towards larger individuals such as aphids and adults of the mite. Table 1 Transformed and original means of the number of individuals of six insect pests (Y 1 = whitefly nymph, Y 2 = whitefly pupa, Y 3 = aphids (nymphs and adults), Y 4 = two-spotted spider mite egg, Y 5 = two-spotted spider mite nymph and Y 6 = two-spotted spider mite adult) for treatments without (T 1 ) and with (T 2 ) biological control A well-designed biological control program should include an adequate selection of the natural enemies to be released as well as an appropriate time for their release.…”

Section: Resultsmentioning

confidence: 99%

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Biological control of insect pests of strawberry (Fragariax ananassa Duch.) in Irapuato, Guanajuato, Mexico

Araiza¹,

Jaime²,

García³

et al. 2020

HIJ

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Strawberry is one of the main crops in the state of Guanajuato, Mexico. The main insect pests are: Tetranychus urticae (Koch.), Trialeurodes vaporariorum (Westwood) and, Chaetosiphon fragaefolii (Cockerell). In order to evaluate the impact of different natural enemies on these pests, two treatments were compared. The first treatment (T 1) consisted in pesticide application, the second treatment (T 2) was composed of the liberation of two natural enemies of these insect pests: Chrysoperla carnea (Stephens) and Hippodamia convergens (Guérin-Méneville). Coriander (Coriandrumsativum L.) was planted on the side of the fields where the natural enemies were released. The adults of T. urticae were more abundant in T 1 than T 2 , by contrast,there were lower number of nymphs and adults of Ch. fragaefolii in T 1 ; nymphs and pupae of T. vaporariorum there were not significantly different between treatments. The populations of T. urticae and Ch. fragaefolii followed a similar pattern, appearing since the end of November and reaching a peak in April, whereas the population of T. vaporariorum showed three population peaks (December, February and June). The presence of C. carnea and H. covergens was similar between T. urticaeand T. vaporariorum, but significant and different with respect of Ch. fragaefolii. The average number of T. urticae's eggs per leaf in the treatment with the release of natural enemies was of 130, compared with 1000 eggs/leaf in the conventional treatment. The population of whiteflies was lower in the biological control treatment. There was an effective pest control with the biocontrol treatment.

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Section: Effect Of the Release Of Bio-control Agents In The Populatiomentioning

confidence: 61%

Section: Resultsmentioning

confidence: 99%

Biological control of insect pests of strawberry (Fragariax ananassa Duch.) in Irapuato, Guanajuato, Mexico

Araiza¹,

Jaime²,

García³

et al. 2020

HIJ

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“…The dominance of C. septempunctata over other coccinellid species has been reported in several studies [26,27]. In addition, intraguild predation between C. septempunctata and H. variegata has been already reported [28,29], and was asymmetric for the former. Such interactions could have postponed the proper establishment of H. variegata in alfalfa until the departure of C. septempunctata.…”

Section: Discussionmentioning

confidence: 81%

Species Complex and Temporal Associations between Coccinellids and Aphids in Alfalfa Stands in Spain

Meseguer¹,

Levi-Mourao²,

Pons³

2021

Insects

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Alfalfa is known to be an important reservoir harboring natural enemies. The reduction in insecticide sprayings in recent years has allowed us to study the coccinellid species complex in this crop and the relationship between these predators and aphids. Alfalfa was sampled by sweep-netting throughout its productive period in several commercial stands each year between 2010 and 2021. The numbers and species of aphids and coccinellids were recorded. Sixteen coccinellid species were found. Coccinella septempunctata and Hippodamia variegata were, by far, the most prevalent species, with the former dominating during the first and second intercuts, whereas the latter dominated from the third to the fifth intercut. Acyrthosiphon pisum and Therioaphis trifolii were the most abundant aphid species, peaking in the second and fourth intercuts, respectively. Positive correlations were found between the abundance of C. septempunctata and A. pisum at the second intercut, between H. variegata and T. trifolii at the fourth intercut, and between H. variegata and the total number of aphids in the fifth intercut. This study helps to increase the knowledge on the predator–prey relationships of this crop and allows for designing strategies of conservation biological control against aphids.

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“…Ladybeetles are key predators in farming systems across the globe, where they prey upon aphids, plant lice, mites, and other soft-bodied insects [ 53 , 54 , 55 ]. However, they also engage in intraguild predation and cannibalism to a varying extent [ 56 ].…”

Section: Discussionmentioning

confidence: 99%

Perennial Flowering Plants Sustain Natural Enemy Populations in Gobi Desert Oases of Southern Xinjiang, China

Liu

et al. 2022

Insects

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Natural habitats play crucial roles in biodiversity conservation and shape the delivery of ecosystem services in farming landscapes. By providing diverse resources to foraging natural enemies, they can equally enhance biological pest control. In this study, we described the plant community and foliage-dwelling invertebrate predators within non-crop habitats of the Gobi Desert oases in southern Xinjiang, China. We assessed whether plant-related variables (i.e., species identity, flowering status) and herbivore abundance affect natural enemy identity and abundance. A total of 18 plant species belonging to 18 genera and 10 families were commonly encountered, with Apocynum pictum (Apocynaceae), Phragmites communis (Poaceae), Karelinia caspia (Asteraceae), and Tamarix ramosissima (Tamaricaceae) as the dominant species. Certain plant species (P. communis) primarily provide shelter, while others offer (floral, non-floral) food resources or alternative prey. Predatory ladybeetles and spiders were routinely associated with these plants and foraged extensively within adjacent field crops. Plant traits and herbivore abundance explained up to 44% (3%–44%) variation in natural enemy community and exhibited consistent, year-round effects. Among all plant species, A. pictum consistently had a significantly higher abundance of resident natural enemies, except for August 2019. Our study underlines how perennial flowering plants, such as A. pictum, are essential to sustain natural enemy communities and related ecosystem services in arid settings. This work not only informs sustainable pest management initiatives but also shows how non-crop habitats at the periphery of agricultural fields underpin ecological resilience under adverse climatic conditions.

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Intraguild predation between two aphidophagous coccinellids, Hippodamia variegata (G.) and Coccinella septempunctata L. (Coleoptera: Coccinellidae): the role of prey abundance

Cited by 18 publications

References 46 publications

Biological control of insect pests of strawberry (Fragariax ananassa Duch.) in Irapuato, Guanajuato, Mexico

Biological control of insect pests of strawberry (Fragariax ananassa Duch.) in Irapuato, Guanajuato, Mexico

Species Complex and Temporal Associations between Coccinellids and Aphids in Alfalfa Stands in Spain

Perennial Flowering Plants Sustain Natural Enemy Populations in Gobi Desert Oases of Southern Xinjiang, China

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