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Home > Potential of Neoseiulus Barkeri Acari: Phytoseiidae in Integration With Synthetic and Plant Origin Pesticides Against Bemisia Tabaci Aleyrodidae Homoptera and Tetranychus Urticae Acari: Tetranychidae

Potential of Neoseiulus Barkeri Acari: Phytoseiidae in Integration With Synthetic and Plant Origin Pesticides Against Bemisia Tabaci Aleyrodidae Homoptera and Tetranychus Urticae Acari: Tetranychidae

Thesis Info

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External Link

Author

Zahid, Muhammad

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2016

Thesis Completion Status

Completed

Subject

Entomology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/9561/1/Muhammad_Zahid_Agri_Entomology_2016_HSR_UAF_07.09.2016.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726978292

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Insects and mite pests are considered as major constraints for getting higher crop yields per unit area. Demands of toxic free food and safer ecosystem compelled the scientists to use Phytoseiids for the control of these sucking pests. The present study was therefore, carried out to determine the potential of local strain Neoseiulus barkeri (Acari: Phytoseiidae) in the Acarology Research Laboratory, Department of Entomology, University of Agriculture, Faisalabad, Pakistan. Predatory potential revealed that it fed efficiently on Tetranychus urticae (Acari: Tetranychidae) and preferred to feed on immature and eggs while the adults were less likely preferred. It was less efficient feeder of white fly, Bemisia tabaci (Aleyrodidae: Homoptera) and exhibited poor life table parameters. It was confirmed that it fed on immatures of white fly than eggs. Different crop pollens and artificial diets were tested and confirmed that cotton pollen was unsuitable for it, because its life cycle was not completed on this pollen. Rose, caster bean and maize pollens were superior diets showed higher growth/longevity, fecundity and values of life table parameters and pepper, alfalfa, citrus, sarsoon and tomato pollens were moderately better while sunflower pollen was poor diet. Artificial diet comprising of 20% (w/w) pupal hemolymph of silkworm was superior while other diet were inferior. For screening safer pesticides bioassay at different dose rates declared that dimethoate was highly hazardous while thiacloprid, chlorfenapyr were moderately harmful, acetamiprid, diafenthiuron, spirotetramate, hexithiazox were slightly harmful and pyriproxyfen, buprofezin, imidacloprid were harmless. Glycine max and Azadirachta indica seed oils were less toxic due to minimum mortality and higher antioxidant activities at minimum tested dose rates while eucalyptus oil was highly toxic. Biofilm inhibition of tested oils indicated low value against Gram negative E. coli and high for Gram positive Bacillus subtilus bacteria. Results advocate opportunity of declaring compatible plant origin pesticides for N. barkeri along with antioxidant properties and safer for humans and non-target organisms. N. barkeri can be used as promising biocontrol agent of T. urticae while comparatively less effective predator of B. tabaci. It can be reared on selective pollens and artificial diets and can be used in integration with safer chemical and plant origin pesticides in IPM module. It is base line study first time done in Pakistan which will be helpful for upcoming researchers. However, further investigations under semi field and field conditions may reveal more comprehensive results.
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اردو فکشن میں جدید اصناف

اُردو فِکشن میں جدید اصناف

(مائیکرو فکشن،افسانچہ،فلیش فکشن کا تحقیقی جائزہ)

منیرعباس سپرا،پی ایچ ڈی سکالر

انسان کو شروع سے ہی کہانی سے دلچسپی رہی ہے کہانی کی تاریخ بھی اتنی ہی قدیم ہوگی جتنی انسان کی ہے کہانی کی تاریخ انسانی زندگی اور اس کی بڑھتی ہوئی پیچیدگیوں کی تاریخ ہوتی ہے جس میں انسان کے کارناموں کی روداد ہوتی ہے جس میں اس نے اپنے ماحول معاشرے کی کسی قوت سے مقابل اگر کامیابی حاصل کی ہو ۔یہی کہانی انسان کے احساس برتری کی تسکین کا ذریعہ بنتی ہے اور اس طرح کہانی کا تعلق ہماری فطرت سے بھی ہے۔

کہانی دنیا کا قدیم ترین فن ہے انسانی قوت تخلیق نے سب سے پہلے قصہ کی تخلیق کی اور داستان قصہ گوئی کی شکل میں موجود تھی پھر قصے کہانیوں نے جدید عہد کے علائق تک انسان کے ساتھ ہی کہانی نے بھی بہت سے مراحل طے کیے داستان گوئی سے ناول ،ناولٹ اور افسانے سے مختصر کہانیوں (مائیکرو فکشن ،افسانحہ ،فلیش فکشن) کی طرف اردو فکشن کا یہ ارتقائی سفر جارہی ہے کیونکہ فکشن میں یہ تغیر تبدل ادب کے ارتقاء کیلئے ناگزیر ہے ارتقاء کا یہی سفر سماج میں بھی جاری رہتا ہےپہلے کی نسبت لوگوں کے پاس فرصت کے لمحات کم ہیں مشینی، صنعتی اور ٹیکنالوجی کی ترقی نے لوگوں کو مصروف کردیا ہےاسی مصروفیت کی حالت میں لوگ ادب سے بھی لطف اندوز ہونا چاہتے ہیں اسی لیے عام قارئین داستان ناول وغیرہ کی ضخیم کتب کی بجائے کم وقت میں کہانیوں سے وہی لذت کشید کرنے کیلئے مختصر کہانیوں( مائیکرو فکشن ،ا فسانحہ ،فلیش فکشن وغیرہ) کی طرف راغب ہو رہے ہیں آج کے ٹیکنالوجی ،مشینی اور گلوبلا ئزیشن کے دور میں معمولیات زندگی میں...

علامہ اسید الحق قادری بدایونی کی کتاب ”قرآن کی سائنسی تفسیر“: ایک مطالعہ

Allama Usaid-ul-Haq Badayuni (1975-2014) was a great Islamic thinker, researcher and religious scholar. He wrote 14 Islamic books were on academic and research works. 17 books were arranged and prefaced by him. 12 books were translated and reviewed by him. 22 books were completed under his supervision. The book “Quran ki Saainsi Tafseer” (Scientific exegesis of Quran) authored by Allama Usaid-ul-Haq Qadri Badayuni is an educational, scholarly and critically acclaimed masterpiece. A comprehensive explanation and meaning of scientific exegesis are given at the beginning of this book. After that, the opinions of the modem and contemporary scholars regarding the justification and non-justification of the scientific interpretation are presented lucidly. The differences between the Quran and Science and several misinterpretations of the scientific exegesis have also been recorded. The conditions set by Islamic scholars and researchers regarding the justification of scientific exegesis have been explained in the book. This book of Allama Badayuni is a wonderful addition to the chapter of scientific exegesis in terms of research and critics. And this book will be remembered as an academic reference in the history of Indo-Pak. KEYWORDS

Population Dynamics, Molecular Characterization and Management of Diamondback Moth, Plutella Xylostella L. Lepidoptera: Plutellidae in Cauliflower

Population dynamics of P. xylostella was studied on cauliflowers in Haripur, Peshawar and Swat districts of Khyber Pakhtunkhwa, having different altitudes and climatic conditions, during the two seasons from June to November in 2012 and 2013. The highest population of larvae and pupae per cauliflower plant was recorded in the month of September in all areas whereas the lowest was measured during July in both years. The population dynamics was correlated with the weather parameters and it was found that there was statistically non-significant (P>0.05) associations with temperatures (maximum and minimum) whereas the interaction with the relative humidity (RH) was non-significant in Haripur (2012 & 2013) and Swat (2013) and significant in Peshawar (2012 & 2013) and Swat (2012). Rainfall (RF) had a negative and highly significant (P<0.01) association with the population of P. xylostella. Multiple Regressions displayed 87.56 to 98.06% variability in population dynamics of P. xylostella in the studied areas due to weather parameters. To determine genetic variability among the populations of P. xylostella, 3rd and 4th instar larvae were collected from Haripur, Peshawar and Swat having distinct geographic conditions and altitudes and were investigated by using RAPD (DNA) primers technique. Seventeen primers were used that produced 64 bands at different loci within a range of between 250 to 1500 bp. The bands produced were all monomorphic and no polymorphisms were detected in the three populations. For the management of P. xylostella Lufenuron (5% EC-200ml/Acre), Steward (15.84% EC-175ml/Acre), Emamectine Benzoate (1.9% EC-200ml/Acre) and Arrivo (10% EC-250ml/Acre) pesticides were used in cauliflower. Lufenuron was found significantly more effective in terms of pest suppression, highest biological efficacy (B.E) and yield as well found safe for the parasitoids as compared to all other insecticides whereas Arrivo insecticide was found at par with the control. Similarly garlic, tomato, chilli and coriander were intercropped with cauliflower for two seasons to manage the infestation of P. xylostella. Garlic reduced the population significantly (P<0.01) as compared to other intercrops and likewise, the highest average yield, maximum percent gain over the control and avoidable losses per plot was obtained in cauliflower + garlic plots whereas the lowest yield (30.16 Kg/40 plants), minimum percent gain (7.56%) and percent avoidable losses (7.03%) was attained from the cauliflower plots intercropped with the coriander. Synchronized study was conducted of the best insecticide (Lufenuron) and intercrop (garlic) obtained from the previous experiments against P. xylostella in cauliflower. Lufenuron + garlic interaction showed significant results with highest biological efficacy (85.08 %), highest gain (90.68%) over control and percent avoidable losses (47.56%) and to suppress the infestation of P. xylostella as compared to their independent encounters. The combination of Lufenuron + garlic is recommended for farmer’s practices in cauliflower for the management of P. xylostella.