aphis gossypii biology

Published by on November 13, 2020

Compared to the other larval stages of the predator, the fourth stadium consumed most quantities of Aphis gossypii Glover nymphs (Hemiptera: Aphididae) (200.4). Trop. Fourth stadium percent consumption was found to be higher than three other stadia. In the fourth stadium it was found highest compared to other stadia. Polyphagous ladybird predators who feed on various aphid prey species on crop plants exhibit biological fitness variations and are therefore likely to vary in their genotypes19,20. ��|�Ja���;ŵ� "��/��� ѳ2{����];� �7 a��'�gc�5��Ӱ�}��,_wY���Y>�7Y۞f妚�۲��v��2`T�m=��;�-)W�c�"Ն��`n�����-��(p��,�� In the same plants/plots, both releases were made. Bull. Bootstrap values are shown near the nodes of individual branches. 4b). T. Boopathi. A percentage reduction in an aphid population in both seasons influenced by release rates. conceived, designed cages and designed research. 0000007459 00000 n Euro. ADS  0000144470 00000 n J. Eco. 3b). Tamura, K., Dudley, J., Nei, M. & Kumar, S. MEGA4: Molecular Evolutionary Genetics Analysis (MEGA) software version 4.0. V.D. Harmonia sedecimnotata is suitable for mass rear in the laboratory, which is an essential requirement for inoculative releases. The aphid populations increased in the control during two seasons (34.10 ± 0.94 and 42.04 ± 0.78/leaf, respectively) on the eggplant (Table 3). Correspondence to J. Journal of Entomological Society of British Columbia, 69: 23-24. Ann. and S.C. performed all biology and predation experiments. The 3rd stadium consumed more aphids than 2nd and 1st stadia, but less than the 4th stadium. Neighbor-Joining (NJ) and Minimum-Evolution (ME) for phylogenetic construction implemented in MEGA 4.0. Only bootstrap values larger than 60% are shown. Similarly, when fed on A. craccivora, the feeding effectiveness of C. sexmaculata adults was higher than that of larvae30. In this investigation, 100 percent similarity was found between the sequences of the two nucleotides, H. sedecimnotata China (EU392410) and India (MG720024) out of 583 bp. Annual Review of Entomology, 13: 325-384. conducted field experiments. The age-specific fecundity (mx), age - specific survival (lx), and age - specific maternity (lxmx) ranged from 0.04 to 0.88, 1.62 to 10.71 and 0.84 to 6.00, respectively (Fig. 0000144105 00000 n Fla. Entomol. 119, 487–491 (1995). Female adult ate most aphids at 69th and 90th day and it was least at 68th day. & Chi, H. Age-stage, two-sex life tables of Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae) with a discussion on the problem of applying female age-specific life tables to insect populations. H. sedecimnotata is therefore one of the most promising biological control agents for cotton aphids that can be achieved for instant control through an inoculative release of adults. Egypt J. Biol. The probability of Sxj was differed between larval stadia and also differed between adults. In: van Emden, H. F., Harrington, R. There was no variation in the sequences of the two nucleotides out of 583 bp, H sedecimnotata China (EU392410) and India (MG720024). volume 10, Article number: 3079 (2020) Host range and predatory fauna of Aphis craccivora Koch in Bangalore, Karnataka. Each bar bearing different letters are not significantly different as determined by Tukey’s HSD test. Chitra Devi, L., Singh, T. K. and Varatharajan, R. 2002. During the 5th day the third stadium consumed most aphids and during the 1st day the least. Sin. 9, 262–266 (1991). Entomological Notes No.6. Development, survival and reproduction of three coccinellids feeding on Hyalopterus pruni (Geoffer) (Homoptera: Aphididae). Biology and ecology of Aphis gossypii Glover (Homoptera: Aphididae). A one-third volume of ice-cold isopropanol was added in the clear aqueous phase and the tubes were incubated at −20 °C overnight. Very few studies have been carried out in the other species of the Harmonia genus. 0000135673 00000 n Scientific Reports The experiment was repeated twice (November to February 2013 and 2014) under laboratory conditions and the mean of both experiments was used to determine life table and consumption rate of H. sedecimnotata. The prey consumption values were significantly higher with the advancement in each larval stage except the second stadium, which consumed fewer aphids. J. Entomol. Hawkeswood, T. Beetles of Australia. Thus, to suppress the aphid population on eggplant, we recommend the release rate of 40 adults per 100 m2. It is a widely distributed pest of a variety of agricultural crops in the families Cucurbitaceae, Rutaceae and Malvaceae. San. Incorporating molecular evolution into phylogenetic analysis, and a new compilation of conserved polymerase chain reaction primers for animal mitochondrial DNA. endstream endobj 239 0 obj <>/Metadata 37 0 R/Pages 236 0 R/StructTreeRoot 54 0 R/Type/Catalog>> endobj 240 0 obj <>/MediaBox[0 0 595.32 841.92]/Parent 236 0 R/Resources<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Rotate 0/StructParents 1/Tabs/S/Type/Page>> endobj 241 0 obj <>stream Journal of Entomological Research, 23: 1-7. Environ. Verma, J. S., Sharma, K. C., Anil Sood and Meenu Sood. These insects attack the plants early in their growing cycle, causing direct damage as a result of sap sucking (Takalloozadeh, 2010) and they also have a considerably negative impact by trans- Rev. 0000063412 00000 n The total consumption rate (F = 77.429; df = 5, 54; P < 0.001) was significantly different (Fig. Am. Biol. After 2 releases of 30 or 40 or 50 adults in both seasons, percentage reduction in an aphid population reached >90%. It was possible to observe the stage differentiation of H. sedecimnotata by using the age-stage, two-sex life table and the emergence and termination of various stages. As expected, this has resulted in many articles dealing with methods of controlling this insect. Res. The second stadium was the least percentage of aphids consumption. Sci. As a result, manipulation of the agroecosystem…, COTTON APHID APHIS GOSSYPII L. (HOMOPTERA; APHIDIDAE); A CHALLENGING PEST; BIOLOGY AND CONTROL STRATEGIES: A REVIEW, Influence of new integrated pest management strategies on aphidophagous predators in horticultural crops. Desneux, N., Decourtye, A. 0000017564 00000 n Ann. It is also possible to observe certain monotonous properties of the lx curve in all studies focused on age-specific life table. Joshi, S., Venkatesan, T. and Rao, N. S. 1997. PDF Views: 23. For the biology and life tables, 85 freshly laid eggs were collected and held in a plastic container under the same conditions. Boopathi, T. et al. Res. A set of COI primers [(F: C1-J-2183): CAA CAT TTT TTT TTT TTT GG and R (TL-2-N-3014-ANT): TGA AGT TTA AGT TCA ATG CAC] was used to amplify the DNA samples49. J. Agric. This is in line with the earlier finding that Cheilomenes sexmaculata (F.) (Coleoptera: Coccinellidae) female killed a maximum of 1624, Aphis craccivora Koch (Hemiptera: Aphididae) than larval stages and male30. 24, 225–240 (1985). The first emerged adult’s survival rate (la) was 0.65. After 3 releases of 30 Hippodamia varigata (Goeze) (Coleoptera: Coccinellidae) larvae on rose leaves and flower buds, more than 95% aphid reduction was achieved42. et al. Mol. The net rate of consumption was 1458.92 nymphs of melon aphids. ), Blackwell Publishing Ltd, London, pp. H�̗]o�6�� �?�jJ��HE1'v�lI��ʆ-�⯨�-�Q6�����Z�Mf��H��s�sx^��o�t�Ls�����dz;��k?�6�x�����2]'y�����M�S'�d6߾}K���s�� _�hNڐIA��� Article  Syst. Braz. At 3rd day the second stadium killed more prey and at 2nd day the lowest. 0000003952 00000 n 54, 833–848 (2010). The tubes were then centrifuged at 16,000 g at 4 °C for 20 minutes. CAS  0000024984 00000 n 0000016524 00000 n Entomol. The mitochondrial genes provide support throughout the topology below the genus level and this will help confirm the species’ current positions in coccinellid evolution. Some features of the site may not work correctly. Cotton aphid, Aphis gossypii Glover (Homoptera:Aphididae), is a cosmopol itan species. Euro. Chien, C. C., Chu, Y. I. 0000006653 00000 n In addition, more eggs were laid by the female beetles and emerged larvae could search for their prey. Boopathi, T. & Pathak, K. A. Efficacy of bio- and synthetic pesticides to Lipaphis erysimi Kalt. Strogani (1984) summarizes information about the A. frangulae group available at that time. The daily consumption rate among adult beetles was the highest in female adults compared to male adults. Path. Verma, J. S. and Sharma, K. C. 2006. 0000013667 00000 n More than 5,200 species have been described worldwide in the Coccinellidae family14. Joshi, S., Ballal, C. R. and Rao, N. S. 1999. 0000064129 00000 n 21, 209–217 (2010). Problems were addressed in adapting female life tables to insect populations34. 98, 475–482 (2005). Bellows, T. S. Restoring population balance through natural enemy introductions. Kalushkov, P. Ten aphid species (Sternorrhyncha: Aphididae) as prey for Adilia bipunctata (Coleoptera: Coccinellidae).

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