Feeding efficacy of coccinella septempunctata and Propylea quatuordecimpunctata against Macrosiphum rosae

2015 ◽  
Vol 12 (2) ◽  
2008 ◽  
Vol 105 (3) ◽  
pp. 427-430 ◽  
Author(s):  
Dimitrios C. KONTODIMAS ◽  
Panagiotis G. MILONAS ◽  
George J. STATHAS ◽  
Nickolaos E. PAPANIKOLAOU ◽  
Anna SKOURTI ◽  
...  

2019 ◽  
Vol 8 (2) ◽  
pp. 32-38
Author(s):  
Farit Talgatovich Miniyarov ◽  
Sergey Ivanovich Pavlov ◽  
Andrey Stepanovich Yaitsky

The paper presents the results of studies of the seven-spotted beetle ( Coccinella septempunctata L.) life cycle, which has 2 generations in the climatic zone of southern Russia. The main stages of the life cycle are the emergence of imago from winter diapause, the first generation from egg to imago, the second generation from egg to imago, the care of adults for wintering. The eating behavior of coccinellid was studied at each stage of the life cycle, which showed the presence of a small herbivorous period (phytophagous beetles), most of the cycle of the beetles had a predatory lifestyle (entomophage beetles). Experiments in the natural and artificial conditions of studying the nutrition of a seven-point beetle showed that adult beetles were more effective in consuming aphids than the larvae. It was also established that in the natural environment, the degree of palatability, both in the larva and in the imago, was directly dependent on the density of the aphids: as the aphid decreased, the feeding intensity of the beetles decreased. To increase the efficiency of aphid consumption, the joint content of two predatory beetles in the imago stage was used: a seven-spotted beetle ( Coccinella septempunctata L.) and ground beetle ( Tomocarabus bessarabicus concretus Fischer von Waldheim). With such simultaneous use (polyculture), a synergistic effect was observed in their consumption of rosan aphid ( Macrosiphum rosae L.).


2005 ◽  
Vol 78 (3) ◽  
pp. 117-123 ◽  
Author(s):  
É. Lucas ◽  
S. Lapalme ◽  
D. Coderre

La voracité de la coccinelle à sept points, Coccinella septempunctata, de la coccinelle à quatorze points, Propylea quatuordecimpunctata, et de la coccinelle orientale, Harmonia axyridis, [Coleoptera : Coccinellidae] a été évaluée en laboratoire face au tétranyque rouge du pommier, Panonychus ulmi [Acarina : Tetranychidae]. Les trois espèces ont consommé le tétranyque rouge. H. axyridis était significativement plus vorace que les autres espèces et présente le potentiel le plus élevé comme ennemi naturel du tétranyque. Malgré sa grande taille, C. septempunctata possédait une voracité très faible, ce qui confirme son inefficacité comme agent de lutte face aux acariens phytophages.


1955 ◽  
Vol 46 (3) ◽  
pp. 561-587 ◽  
Author(s):  
C. J. Banks

Changes in numbers of adult Coccinellids on nettles infested with Microlophium evansi (Theo.) and on three experimental bean plots infested with Aphis fabae Scop. are described for the spring and summer of 1952 at Rothamsted. Of the three common species, Adalia bipunctata (L.), Coccinella septempunctata L. and Propylea quatuordecimpunctata (L.), the first was always the most abundant.The overwintered Coccinellids produced two broods: one on nettles in the spring and one on beans in early summer.On bean plots, changes in numbers of the adult insects occurred in three phases: (1) overwintered ladybirds, dispersing from nettles and other places, accumulated on the beans in the early stages of the infestations by Aphis fabae; (2) ladybirds, which had developed from eggs laid by the overwintered insects on nettles, emigrated from nettles and accumulated on the beans when A. fabae populations were at their height; (3) ladybirds, developed from eggs laid on the beans also by the overwintered insects, reached the adult stage when the bean aphid infestations had finished. The rise and fall of the A. fabae populations are discussed.One of the bean plots had always a high population of Coceinellids, which was attributed to its situation between two of the nettle sites. The other two bean plots were remote from nettles and one was sheltered by trees and buildings; their coccinellid populations were much lower.


1974 ◽  
Vol 63 (3) ◽  
pp. 411-422 ◽  
Author(s):  
G. J. Dean

AbstractIn a study of aphids and their parasites, hyperparasites and predators in a field of cereals at Rothamsted Experimental Station in 1970–71, samples were taken by counting specimens in 0·3-m lengths of row and by means of a suction trap set 12·2 m above ground and 0·5 km away from the field. Migrant aphids (Metopolophium dirhodum (Wlk.) and Macrosiphum avenae (F.)) and Braconid parasites (Aphidius spp., Ephedrus plagiator (Nees) and Praon volucre (Hal.)) were caught from April–May to August–September, with most from mid-June to August, whereas hyperparasites (Phaenoglyphis sp., Lygocerus aphidivorus Kieff., Asaphes vulgaris Wlk., Coruna clavata Wlk. and Alloxysta sp.) occurred for more of the year. Of the six parasite species attacking aphids on cereals in 1970–71, three Aphidius spp. were more common than E. plagiator and Praon volucre. Parasitism was higher and aphids were fewer in 1971 than in 1970. In the field, more than 80% of the mummies were of old nymphs; parasitism of live old nymphs and apterae was similar, larger than for alatae, and larger for Metopolophium dirhodum than for Macrosiphum avenae. Hyperparasitism by five species affected parasitism, especially in 1970. Migrant Coccinellids were trapped at the start and end of aphid infestations on cereals, Syrphids mainly in July and August, and other predators for longer. The commonest predators were Coccinella septempunctata L. and Propylea quatuordecimpunctata L. in 1970 and Syrphus balteatus (Deg.) in 1971; the others were scarce. July populations of aphids were primarily reduced by the Syrphids.


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