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Articles by Zahid Hafeez
Total Records ( 5 ) for Zahid Hafeez
  Muhammad Faheem Malik , Muhammad Nawaz and Zahid Hafeez
  To evaluate the effect of row-to-row distance of onion plants on thrips population, an experiment was conducted in Quetta, Pakistan. Five line spacing (20, 25, 30, 35 and 40 cm) with constant 20 cm plant-to-plant distance were tested. An inverse relation was found between increased line spacing and thrips population. Maximum mean number of thrips (162.4 plant-1) was observed on the plants cultivated in 20 cm apart rows with minimum yield (20310 kg ha-1). Minimum mean number of thrips (96.20 and 98.55 plant-1) was recorded from T5 (40 cm RxR distance) and T4 (35 cm RxR distance) with 20380 and 21250 kg ha-1 yield, respectively. Optimum number of thrips (114.3 plant-1) was recorded on plant cultivated in 30 cm apart lines with maximum yield (28250 kg ha–1). 30 cm row-to-row distance with 20 cm plant-to-plant distance in onion is recommended as an Integrated Pest Management (IPM) tool to culturally control thrips in the crop.
  Muhammad Faheem Malik , Mohammad Nawaz and Zahid Hafeez
  A synthetic insecticide (Monocrotophos 40WSL) and three botanical infusions (Datura alba Seed Extract Infusion, SEI; Calotropis procera Latex Infusion, LI and Citrullus colocynthus Fruit Extract Infusion, FEI) were tried against onion thrips on broadcasted onion variety “Chlitan 89” in Quetta, Pakistan. All tested insecticides caused mortality of onion thrips at various degrees of significance over untreated control. C. procera LI, proved it self the best among the tested botanical insecticides and provided 42.67 % control after Monocrotophos that caused 76.24 % mortality of onion thrips. D. alba SEI and C. colocynthus FEI showed minimal control (17.23 and 6.77 % respectively) of the said pest than other tested insecticides but the results encourage the idea of pollution free methods of pest control. The C. procera LI can be used as good as any other botanical insecticide in Integrated Pest Management (IPM) of onion thrips.
  Muhammad Faheem Malik , Mohammad Nawaz and Zahid Hafeez
  Six onion (Allium cepa L.) varieties (Red Creole, Chiltan-89, Local, Sariab Surkh, White Globe and Local Kandhari) were evaluated against thrips infestation in Quetta, Pakistan. The results of the trial revealed that Thrips tabaci Lindeman (Thysanoptera: Thripidae) is the attacking species to onion in the region. The said pest infested more or less all varieties. Local Kandhari followed by Sariab Surkh were the most susceptible to thrips infestation while Chiltan-89 was the least. Red Creole and White Globe were discarded due to their poor performance in terms of growth and yield. Both are short days varieties thus not suited to the region. Maximum yield (10750 kg ha-1) was obtained by Chiltan-89 and minimum by Sariab Surkh and Local Kandhari (2543 and 3418 kg ha-1 respectively). The population got its peek at 28.51°C in the month of August when maximum numbers of thrips per plant (17.55) were recorded. On the basis of the results onion variety Chiltan-89 is recommended for commercial cultivation in the region.
  Muhammad Faheem Malik , Mohammad Nawaz and Zahid Hafeez
  A diagnostic survey was conducted to evaluate the importance, methodology of agronomic practices, agronomy irrigation, plant protection activities and economic status of onion (Allium cepa L.) in Balochistan, Pakistan. 180 onion respondents (growers/professionals) were interviewed through a formatted questionnaire at their doorsteps. Survey revealed that the crop plays an important role in the economy of the province and 100% respondents of the region cultivate the crop because of net return. At least 0.49 ha is under onion cultivation by each respondent. Maximum average area under onion cultivation and yield was reported from Kalat division (3.09 ha and 17758 kg ha‾1 respectively). In Kalat and Nasirabad divisions mostly young generation (<35 years) is engaged with agriculture farming. In Quetta and Zhob divisions the farmers are mostly between 36-50 years of age. Sibi and Makran have old farmers (50 years). Mostly Local and Sariab Surkh onion varieties are cultivated by broadcasted method with a range 12-16 kg ha‾1 seed rate. Fertilizer is applied in Kalat, Quetta and Nasirabad only while pesticides in Kalat, Quetta, Nasirabad and Zhob divisions. The crop is provided by 16-30 (minimum to maximum) irrigations. Irrigation water, thrips (Thrips spp.) attack and presence of weeds is the major reported problems of the crop in the province. Hand weeding for the eradication of weeds is used in all divisions. Best cost/benefit ratio (1: 4.49) was calculated from Nasirabad and least (1: 2.60) from Makran division.
  Muhammad Faheem Malik , Mohammad Nawaz and Zahid Hafeez
  A comparative study of six onion (Allium cepa L.) varieties (Red Creole, Chiltan-89, Local, Sariab Surkh, White Globe and Local Kandhari) was conducted against thrips infestation in Quetta, Pakistan. The results of the trial revealed that Thrips tabaci Lindeman (Thysanoptera: Thripidae) is the attacking species to onion in the region. All the varieties were infested by thrips at various degrees. Maximum yield (11500 kg ha-1) was obtained by Chiltan-89 and minimum (812.5 kg ha-1) by Red Creole. Local Kandhari followed by Sariab Surkh were the most susceptible to thrips infestation while Chiltan-89 was optimum. The population got its peek (14.74 thrips per plant) at 27.910C with 52.64% humidity in the month of August. On the basis of the results onion variety Chiltan-89 is recommended for commercial cultivation in the region.
 
 
 
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