Marryam Bakhtawar1, Qamar Saeed1* and Naeem Iqbal2
... was done. These include mustard aphids (Lipaphis erysimi) cotton mealybug (Phenacoccus solenopsis), grain moth eggs (Sitotroga cerealella) and honey. Results revealed complete development of all larval stages on all diets with maximum survival of lady bird beetle larvae on mustard aphid (76.6%) followed by on grain moth’s eggs (20%), immature mealybugs (6%) and the least survival on honey. These findings can lead to t...
Wajid Hasan1 and C. P. Singh2
Relationship between the population of mustard aphid,Lipaphis erysimi (Kaltenbach) and weather parameters on different cultivars of Indian mustard ( Brassica juncea L.)
...pulation dynamics of the mustard aphid,Lipaphis erysimi Kalt. on different 42 cultivars of Indian mustard (B. juncea). The results revealed that the population of L. erysimi exhibited negative correlation with maximum and minimum temperature,rainfall, wind velocity, evaporation and positive with afternoon and morning relative humidity. The values of coefficient of determination (R ) were high (0.92 to 0.99), indicated that the population of L. erysimi governed...
Dipak Mandal, Paramita Bhowmik and M.L. Chatterjee
Evaluation of new and conventional insecticides for the management of mustard aphid, Lipaphis erysimi Kalt. (Homoptera: Aphididae) on rapeseed (Brassica juncea L.)
...few insecticides against mustard aphid, Lipaphis erysimi K. on rapeseed (Brassica juncea L.). Experiment was laid out in Randomized Block Design with eight treatments. Insecticides used in the experiments were imidacloprid 17.8% SL at 27g a.i/ha, lambda-cyhalothrin 5% EC at 25g a.i/ha, chlorpyriphos 20% EC at 375g a.i/ha, dichlorvos 75% EC at 375g a.i/ha, thiamethoxam 25% WG at 27g a.i/ha, dimethoate 30% EC at 375g a.i/ha and chlorpyriphos 50% + cypermethrin 5...
S. Choudhury and S. Pal
Population dynamics of mustard aphid on different Brassica cultivars under terai agro-ecological conditions of West Bengal
...e population dynamics of mustard aphid on seven popular rapeseed-mustard cultivars. The incidence of aphid commenced from 52nd to 2nd standard week with a very low population levels on all the cultivars. The aphid (Lipaphis erysimi) population attained peak level from 7th to 9th standard week. The correlation coefficients between aphid population and different abiotic factors revealed contradictory results. Except for a few instances the weather parameters sho...
Rahat Afza, Muhammad Afzal, Muhammad Zeeshan Majeed and Muhammad Asam Riaz*
...dators of the canola and mustard aphids. But the application of insecticides in field to manage aphids cause impairment of several key biological traits of the exposed coccinellids through physiological and behavioral effects. It is crucial to understand the effects of insecticides on the coccinellids. The current research was aimed at determining the intra-guild predation (IGP) of different life stages combinations of Coccinella septempunctata and C...
Sikander Ali1, Muhammad Kamil Malik1, Muhammad Zubair1*, Muhammad Jawad Saleem2, Kanwal Hanif2 and Saira Azmat3
...insecticides against the mustard aphid; responsible for huge yield losses in Brassica juncea. Maximum mortality of mustard aphid was caused by nitenpyram (96.24%) followed by carbosulfan (94.69%) and pyriproxyfen (90.85%). Results of these three insecticides were not significantly different from each other but were different from thiamethoxam which showed least mortality (71.65%). Nitenpyram, carbosulfan and pyriproxy...
Noor Muhammad* and Shah Alam Khan
...nt crops of Pakistan and mustard aphid, Lipaphis erysimi Kalt. (Hemiptera: Aphididae), is a serious threat to this crop. This experiment was conducted with an aim to screen out selected canola cultivars for their tolerance against L. erysimi infestation under glass-house conditions. Experiment was carried out using completely randomized design with ten replications for each treatment during growing seasons of 2018 and 2019. Data were documented based on the to...
Noor Muhammad* and Shah Alam Khan
...canola genotypes against mustard aphid (Lipaphis erysimi) was conducted under glasshouse conditions, The University of Agriculture, Peshawar during growing seasons of 2018-2019. During this study, a total of two different experiments were carried out where, antixenosis experiment, comprised three levels; seedling, flowering and pod stage. In all the three stages, only genotype ‘KS-75’ proved as antixenosis resistant against the aphid compared to su...
Misbah ud Din1, Shah Alam Khan1, Said Hussain Shah1,2* and Najeeb Ullah3
...erent pesticides against mustard aphids in selected mustard cultivars under field conditions. The experiment was carried out in Split Plot Design with four treatments and three replications. The results showed that Thiamethoxam, Fipronil and Neem oil were effective against mustard aphids. After the first spray, the minimum mean numbers of aphids were recorded (8.49) on a variety of China in a plot treated with Thiamethoxam. ...
Misbah ud Din1, Shah Alam Khan1, Said Hussain Shah1,2* and Najeeb Ullah3
...erent pesticides against mustard aphids in selected mustard cultivars under field conditions. The experiment was carried out in Split Plot Design with four treatments and three replications. The results showed that Thiamethoxam, Fipronil and Neem oil were effective against mustard aphids. After the first spray, the minimum mean numbers of aphids were recorded (8.49) on a variety of China in a plot treated with Thiamethoxam. ...
