Effect of planting date on the incidence of eggplant aphid, &lt;i&gt;Aphis gossypii&lt;/i&gt; Glover and yield of eggplant

Rahman, M. M.; Sarker, Pankoj Kumar; Das, Bidhan Chandra

doi:10.3329/bjz.v39i2.10585

Cited by 4 publications

(4 citation statements)

References 7 publications

(4 reference statements)

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“…Kedua jenis hama pengisap daun ini sama-sama menunjukkan tidak berbeda nyata pada intensitas serangannya terhadap tanaman terung. Penelitian Rahman et al (2011) bahwa infestasi kutu daun Aphis gossypii Glover dan hasil pada dua belas varietas terung selama tiga musim tanam berturut-turut (2005-2006, 2006-2007 dan 2007-2008) menunjukkan hasil terung secara bertahap menurun dan hasil terendah dicatat untuk penanaman periode ketiga yaitu 1,06-1,88 kg / tanaman.…”

Section: Hasil Dan Pembahasanunclassified

Intensitas Serangan Hama pada Beberapa Jenis Terung dan Pengaruhnya terhadap Hasil

Apriliyanto¹,

Setiawan²

2019

Agrotech. Res. J.

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Eggplant pest attack, does not only decrease quantity of the yields, but also the quality. Because of this, it needs effort to use resistant eggplant againt the pests. The purpose of this research was to evaluate the intensity of pest attack on several types of eggplant and their effect on the yield. The design used in the study was a completely randomized block design (RCBD). The research was consisted of 4 treatments with 3 replications. The treatments were 4 types of eggplant that were purple , white eggplant, green eggplant, and green streak white. Data were analyzedby F Test, if it was significantly different, by then it was continued with DMRT (Duncan’s Multiple Range Test) at the level of 5%. Pest attack intensity of grasshopper (Orthroptera: Acrididae), caterpillars (Lepidoptera: Pyralidae), ladybird Epilachna sp. (Coleoptera: Coccinellidae), leafhopper Amrasca sp. (Hemiptera: Cicadellidae), and Aphis sp. (Hemiptera: Aphididae) on the eggplant types showed there was no significantly difference. The intensity of pest attacks which were not significantly different in all types of eggplant along with the results of analysis of plant height and number of fruits which also showed there was no significantly difference in all type eggplants.

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Section: Hasil Dan Pembahasanunclassified

Intensitas Serangan Hama pada Beberapa Jenis Terung dan Pengaruhnya terhadap Hasil

Apriliyanto¹,

Setiawan²

2019

Agrotech. Res. J.

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“…were observed feeding on colonies of aphids. M. sexmaculatus is predaceous and distributed worldwide in Philippines, South Africa, Southern western Asia, Indonesia, India and Pakistan (Rahman et al, 1993). This predator beetle feed on a spacious range soft body insect pest, consisting of plant hopper, jassids, thrips, mealy bugs, white fly and aphids that cause damage to economically important vegetables, fruits and other cultivated crops (Solangi et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Biology and Feeding Efficiency of Zigzag Beetle, Menochilus sexmaculatus (Fab.) (Coleoptera: Coccinellidae) Fed on Mustard Aphid, Lipaphis erysimi (kalt.) (Hemiptera: Aphididae) Under Controlled Conditions

Hussain,

Khan,

Blouch

et al. 2023

PJAR

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| Research was conducted to evaluate the biological attributes and feeding efficiency of Menochilus sexmaculata fed on Lipaphis erysimi under laboratory conditions. The mean developmental time from egg till adult emergence was 41.60±0.70 days under laboratory conditions of 24±1c° with 55±5 percent relative humidity (R.H.). The incubation period was 4.00±0.25 days. The pre-oviposition, oviposition, and postoviposition periods were observed at 8.6, 24.1 and 6.0 days, respectively. The total laid eggs/female were 288.4 eggs. The pre-pupae and pupae developmental time was 1.00±0.00 and 6.00±0.08 days, respectively. The overall mean male longevity was 33.40 days, while the mean female longevity was 38.70 days. In larval feeding efficiency, the maximum mean number of aphids (479.6) were consumed by larvae while the minimum mean number of aphids (36.8) were consumed by 1 st larva instar. Female beetle was recorded with a maximum mean number of aphids (2561) consumption as compared to male beetles (1921). Furthermore, the apparent mortality was highest at egg stage, making it the most vulnerable stage in the beetle's life cycle, followed by 1 st instar larval stage, which also showed higher mortality. The maximum survival fraction was observed for pre-pual and fourth instar larvae, while the minimum was found for the egg stage. Mortality survival ratio (MSR) was found to be maximum at the egg stage and minimum at the 4 th instar and pre-pupal stages, while the Indispensable mortality (I.M.) was found to be maximum at the egg stage and minimum at 4 th instar and pre-pupal stages. Life expectancy (ex) was found to be maximum in the egg phase (4.67) and minimum in the pupal phase (1.5). The total K value for the whole generation was 0.33.

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“…At present, the main measures to control aphids include agronomic practices [5][6][7][8] and chemical [9][10][11], physical [12][13][14], and biological control. The application of chemical insecticides has been the most-used strategy till now.…”

Section: Introductionmentioning

confidence: 99%

Bacillus amyloliquefaciens AK-12 Helps Rapeseed Establish a Protection against Brevicoryne brassicae

Qian,

Ahmed,

et al. 2023

IJMS

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Aphids are a serious threat to rapeseed (Brassica napus L.) production, and cause unmanageable loss. Therefore, effective prevention and management strategies are urgently required to avoid losses. Bacillus amyloliquefaciens AK-12 isolated from a dead aphid with aphicidal activity was tagged with a green fluorescent protein through a natural transformation. The transformed strains were checked for stability and growth, and the best-performing strain was tested for its colonization inside and outside the rapeseed plant. The stability of AK-12-GFP reached more than 95%, and the growth curve was consistent with that of AK-12. After 30 days of treatment, the colonization of 1 × 106 CFU/g was recorded in rapeseed leaves. Interestingly, AK-12 reduced the aphid transmission rate compared with the control and improved the growth of the rapeseed seedlings. Meanwhile, the AK-12 strain also exhibited phosphorus, potassium-solubilizing, and nitrogen-fixing activity, and produced 2.61 µg/mL of IAA at 24 h. Regulation in the activity of four enzymes was detected after the AK-12 treatment. Phenylalanine ammonia lyase (PAL) was recorded at a maximum of 86.84 U/g after 36 h, and catalase (CAT) decreased after 48 h; however, peroxidase (POD) and polyphenol oxidase (PPO) reached the maximum within 12 h of AK-12 application. Additionally, important resistance genes related to these enzymes were upregulated, indicating the activation of a defense response in the rapeseed against aphids. In conclusion, defense enzymes and defense-related gene activation could improve the pest resistance in rapeseed, which has good application prospects for the future to be developed into biopesticide.

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Effect of planting date on the incidence of eggplant aphid, <i>Aphis gossypii</i> Glover and yield of eggplant

Cited by 4 publications

References 7 publications

Intensitas Serangan Hama pada Beberapa Jenis Terung dan Pengaruhnya terhadap Hasil

Intensitas Serangan Hama pada Beberapa Jenis Terung dan Pengaruhnya terhadap Hasil

Biology and Feeding Efficiency of Zigzag Beetle, Menochilus sexmaculatus (Fab.) (Coleoptera: Coccinellidae) Fed on Mustard Aphid, Lipaphis erysimi (kalt.) (Hemiptera: Aphididae) Under Controlled Conditions

Bacillus amyloliquefaciens AK-12 Helps Rapeseed Establish a Protection against Brevicoryne brassicae

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