Feeding potential of Coccinella septempunctata (L.) on mustard aphid, Lipaphis erysimi (kaltenbach) and akk aphid, Aphis nerii (Boyer de Fonscolombe)

Biology and Predatory Potential of <i>Coccinella septempunctata</i> And <i>C. Transversalis</i> feeding on<i> Lipaphis erysimi</i>

“…On the other hand, Rajan et al (2019), Chakraborty and Korat (2014) and Gurung et al (2018) also reported oviposition period of C. transversalis which were 13.0± 1.33, 12.20± 1.27 and 9.2± 2.14 days, respectively. The post-oviposition period was found to be varied from 3 to 6 days with an average of 4.58± 0.831 days in present studies, which was in agreement with Mari et al, (2016) who reported the post-oviposition of 4.66 days of C. undecimpunctata on maize aphid and Rajan et al (2019) who reported the postovipsition period of 4.6± 0.84 days. The post-oviposition period was also given by Kumar et al, (2019) which was 5.1± 0.87 and 4.33± 0.88 days, respectively.…”

“…Bista (2020) reported pre-oviposition period of 6.40± 0.40 days when prey was abundant and 9.20± 0.49 days when reared under scarcity of prey. The present studies revealed that oviposition of C. transversalis on mustard aphid, L. erysimi under laboratory conditions was 24.08± 1.826 days, which was in close conformity with those of Mari et al (2016) who recorded the oviposition period of 23.62 days of C. undecimpunctata on mustard aphid, L. erysimi and 24.22 days on maize aphid. On the other hand, Rajan et al (2019), Chakraborty and Korat (2014) and Gurung et al (2018) also reported oviposition period of C. transversalis which were 13.0± 1.33, 12.20± 1.27 and 9.2± 2.14 days, respectively.…”

“…The male longevity of C. transversalis grub on mustard aphid, L. erysimi varied from 21 to 40 with an average of 30.12± 4.492 days, which is in accordance with the studies of Kumar et al (2019) who reported the male longevity of 30.67± 0.67 days. Similar results were shown by Mari et al (2016) who reported the male longevity of 30 days of C. undecimpunctata on maize aphid. Chakraborty and Korat (2014) reported male longevity of 21.13± 1.02 days.…”

“…Sarker et al (2019) reported the first instar grub period of C. transversalis were 2.66± 1.15 and 2.66± 0.58 days on A. craccivora and A. gossypii, respectively. Mari et al (2016) reported the period of first instar grub of C. undecimpunctata on mustard aphid, L. erysimi which was 5.23 days.…”

Effects of different hormones as dietary supplements on biological characteristics of Coccinella septempunctata L.

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The ladybird beetle, Coccinella septempunctata L. (Coleoptera: Coccinellidae), is a predacious natural enemy that feeds on a variety of insect pests (Chatha & Naz, 2020;Gerling, 1986;Hakeem et al, 2021). Due to changing climate conditions, the farming has shifted towards simplification and the heavy use of pesticides, which makes it difficult to maintain a ladybug population that is sufficient to control pests.

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