Mansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701QUNTITY OF COLLECTING POLLEN BY HONEY BEE ( Apis mellifera L. ) AND ITS RELATION WITH CLIMATIC CONDITIONS IN GHARBIA GOVERNORATE, EGYPT6036098740810.21608/jppp.2013.87408ENA. M.EL-HadyBeekeeping Research Department, Plant Protection Research Institute, ARC, Dokki, GizaAsmaa A.EissaBeekeeping Research Department, Plant Protection Research Institute, ARC, Dokki, GizaA . A .TahaBeekeeping Research Department, Plant Protection Research Institute, ARC, Dokki, GizaJournal Article20200506 The present study was carried out at a private apiary in Ayash village, Mehalla El-Kobra, Gharbia governorate in 2011- 2012 seasons. The aim of this study to detect the quantity income pollen collected from clover and maize crops. Survey of the area vegetation showed that clover was the dominated crop in winter and some <em>viacia faba</em> been fields, while rice, maize and may be some cotton fields in summer . Nine colonies with 10 combs were used in this study. In general, the mean of collected pollen was higher in clover season than those in maize (103.924 and 77.981g in 2011, however, in 2012 it was 47.232 and 45.425 g\ 9 colony\3 days ), respectively. Air temperature and relative humidity were also registered. The highest collected quantity of pollen reached its maximum values between 70% and 78% of relative humidity and 23 <sup>0</sup>C and 25 <sup>0</sup>C. The number of pollen loads increased as relative humidity (r = 0.109; 0.151) and temperatures had a strong negative influence on the collected pollen (r = -0.193; -0.375 ) in clover season. The pollen loads decreased positively with temperature (rs = -0.375,0.463 and 0.127) , negatively correlated with relative humidity (rs = 0.151, - 0.391 and 0.248) in maize season. The high values of loading pollen were in clover than those in maize, it may be related with the long flowering of clover as well as the effect of climatic influences .https://jppp.journals.ekb.eg/article_87408_0f9e80cb5d4f292cac4c4044f2104687.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-367747201307014FEEDING CAPACITY OF THE PREDACIOUS MITE Neoseiulus bellinus (WOMERSLEYI) FED ON Tetranychus urticae (KOCH) AT DIFFERENT TEMPERATURES6116168740910.21608/jppp.2013.87409ENWalaa M. R.Abou ZaidPlant Protection Res. Inst., Agric. Res. Center, Doki, Giza, EgyptJournal Article20200506The spider mite, <em>Tetranychus urticae</em> (Acari: Tetranychidae) is the main pest of various crops and trees. This study was conducted to evaluate the efficacy of the predacious mite, <em>Neoseiulus bellinus </em>(womersleyi) (Acari: Phytoseiidae), in checking <em>Tetranychus urticae</em> at different temperatures and 70% relative humidity.The developmental periods of different immature stages decreased with increasing temperature and the life cycle for female was 9.12±1.2 and male were 7.8 ± 0.67 days at 30°C. However the development time was 14.18 ± 1.77 for female and 12.2±1.32 for male at 20°C.The pre- and post-oviposition period and female longevity all shortened as temperature increased. The longest oviposition period was observed at 20°C as 26.62 ± 3.3 days.While at 30 <em>°</em> C 24.5±2.9 days. The mated females laid an average 5.99 ± 1.39 and 11.69 ± 0.7 eggs per day, respectively. The life cycle for all immature stages tended to decrease as the light period increased indicating that immature development as well as diapause induction are affected by photoperiod and further suggest that diapause-inducing stimuli prolong the developmental period especially for the deutonymphal stage.https://jppp.journals.ekb.eg/article_87409_18f0d5001d45ddef691d1f8b782c499f.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701EFFICIENCY OF SOME NEW INSECTICIDES ON COTTON BOLLWORMS, Pectinophora gossypiella (SAUND.) AND Earias insulana (BOISD.)6176248741010.21608/jppp.2013.87410ENA. A.SalehPesticides Dept., Fac. of Agric., Mansoura Univ., EgyptLaila R.ElgoharyPesticides Dept., Fac. of Agric., Mansoura Univ., EgyptW. M.WatsonPlant protection, Research Institute, Agric. Research Center, Doki, Giza, EgyptA. S.ElabasyPlant protection, Research Institute, Agric. Research Center, Doki, Giza, EgyptJournal Article20200506Field experiments were conducted at Sakha Agricultural Research Station Farm during 2011 and 2012 cotton growing seasons to evaluate the efficacy commercial formulation of four insecticides, i.e., pyridalyl, emamectin benzoate, methomyl and methoxyfenozide against pink bollworm, <em>Pectinophora gossypiella</em> (Saund.) and spiny bollworm, <em>Earias insulana</em> (Boisd.). Pyridalyl and emamectin benzoate were the most efficient compounds during the two seasons. The treatments could be arranged descendingly according to the average reduction of two seasons as follows: pyridalyl (52.21, 50.78 %), emamectin benzoate (46.55, 49.61%), methomyl (38.49, 37.82 %) and methoxyfenozide (34.10, 31.90 %) against pink and spiny bollworms. Also, the toxicity of these compounds was determined against 4<sup>th</sup> instar larvae of spiny bollworm, <em>E</em>.<em> insulana</em> (Boisd.) using film residue assay method. The data revealed that emamectin benzoate was a superior potent compound followed by methoxyfenozide, pyridalyl and methomyl, with LC<sub>50</sub> values were 1.42, 14.21, 16.99 and 99.78 ppm, respectively. https://jppp.journals.ekb.eg/article_87410_9cd3a57065c188de11a581a7be1bd209.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701EFFECT OF INTERCROPPING OF PEA WITH SOME MEDICINAL PLANTS ON MICROBIAL COMMUNITY OF SOIL, DAMPING-OFF AND DOWNY MILDEW DISEASES, UNDER BEHEIRA GOVERNORATE CONDITIONS6256418741310.21608/jppp.2013.87413ENGehad M.MohamedVegetable Dis. Dept., Plant Pathology Res. Institute, ARC, Giza, Egypt:Journal Article20200507Isolation from diseased roots of pea plants collected from three locations at El Beheira governorate indicated that, the most frequently isolated fungi are <em>Fusarium solani </em>and <em>F. oxysporum</em> with the averages of 24.07% for both followed by <em>Alternaria solani </em>and <em>Rhizoctonia solani</em> with 14.81% and <em>F. moniliforme</em> with 9.26%, respectively. The disease severity of downy mildew, caused by <em>Peronspora viciae</em> was recorded during 2007/2008 and 2008/2009 at Etay Elbaroud, Badr and Kom Hamada provinces and the averages were 28.37, 22.24 and 13.27%, respectively. The essential oils of Cumin, Caraway and Anise showed the most reducing effect for the mycelial growth of<em> F. solani, F. moniliforme</em> and <em>Sclerotium rolfsii in vitro</em> with the averages of 70.99, 21.92 and 14.96%, respectively. The highest significant reduction of the spores number of <em>F. solani</em> and <em>F. moniliforme</em> was observed with the essential oils of<em> Cuminum cyminum</em>,<em> Carum carvi</em> and <em>Foenculum vulgare</em>. In addition essential oils of<em> C. cyminum</em> and<em> C. carvi</em> reduced the number of sclerotia of <em>S. rolfsii</em>. <br /> Intercropping of pea with medicinal plants was studied in field trials through two successive seasons. Cropping pattern side/side combination showed certain reduction of pea damping-off disease and disease severity of downy mildew than sole pea (check). Total damping-off was reduced using intercropping with <em>C. carvi, F. vulgare </em>and <em>Pimpinella anisum </em>compared with sole pea with averages of 39.19, 48.00 and 48.29% during 2007/2008 and 33.46, 39.33 and 40.33% during 2008/2009, respectively. Intercropping pea with medicinal plants <em>F. vulgare</em>,<em> C. carvi</em>, <em>Anethum graveolens</em> and <em>P. anisum</em> were more effective in decreasing disease severity of downy mildew with the averages of 20.20, 20.58, 21.27 and 22.83% during 2007/2008, respectively compared with check (sole pea). <br /> Pea intercropped with some medicinal plants could regulate soil microbial community such as actinomyces, bacteria and fungi effectively. The results showed that soil rizosphere was improved, and the fungal diversity differed. <em>Fusarium </em>spp<em>. </em>and <em>R. solani</em> were found only when pea intercropped with <em>Cuminum cyminum</em> and<em> Nigella sativa</em>. No familiar pathogens were found with intercropping with<em> C. carvi</em>, <em>F. vulgare</em> and <em>P. anisum</em>. The CFU of bacteria in case of intercropping with<em> C. carvi</em> and <em>N. sativa </em>was the highest during the two growth stages of pea, and that of actinomycets in all six intercropping treatments was increased during the flowering stage of pea. The use of intercropping system in pea with medicinal plants as a mean for natural disease control is discussed. <br /> Intercropping pea with <em>C. carvi </em>increased pea fresh and dry weight in addition to the weight of 100 seeds for both seasons (2007/2008 and 2008/2009) more than other intercropping treatments and sole pea. In contrast, the intercropping with <em>C. cyminum</em> and <em>N. sativa</em> had the least values. <em> </em>https://jppp.journals.ekb.eg/article_87413_20a83c10622569fae546cda50580badb.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701تأثير أنواع السماد الطبيعي على الکائنات الدقيقة في محيط جذور نباتات الطماطم6436508741410.21608/jppp.2013.87414ENخديجة فرجالعربيقسم وقاية النبات –کلية الزراعة - جامعة طرابلسنجاة خلیفةالغريانيقسم وقاية النبات –کلية الزراعة - جامعة طرابلسإلهام حسنالواردقسم وقاية النبات –کلية الزراعة - جامعة طرابلسالزروق أحمدالدنقليقسم وقاية النبات –کلية الزراعة - جامعة طرابلسربيعة محمدالکوتقسم علم النبات – کلية العلوم – جامعة طرابلسJournal Article20200507 هدفت هذه الدراسة إلى دراسة العلاقات الموجودة بين الکائنات الحية الدقيقة والنباتات الراقية والتي تؤثر تأثير واضحا في خصوبة التربة وفي الإنتاج الزراعي. وعند مقارنة تأثيرات إدماج أربعة أنواع من الکومبوست على الترکيب الميکروبي لمحسنات النمو الجذرية في منطقة محيط جذور نباتات الطماطم أکدت النتائج أن ارتفاع نسب العناصر الأساسية من النيتروجين والفوسفور والبوتاسيوم في الخليطين (3) و(4) قد أثرت على نمو نباتات الطماطم طوال فترة التجربة، مما زاد من أعداد تجمعات البکتيريا المعروفة بدعمها لنمو النباتات. کذلک فان البکتيريا التي تم عزلها قبل وبعد زراعة النباتات وکانت سائدة في هذه الخلائط هي من . <em> Pseudomonas spp</em> <em>&</em> <em>Bacillus, Streptomyces</em> وهي معروفة بدعمها لنمو النباتات من محسنات النمو البکتيرية ((PGPR والتي يمکنها أن تساعد النباتات في الظروف الملائمة على النمو والإنتاج. أشارت نتائج هذه التجربة إلى أن استعمال الکومبوست کمحسنات للتربة من الممکن أن يؤثر معنويا على PGPR في منطقة جذور نباتات الطماطم، ولکن في حالة زراعة شتلات ذات عمر کبير نسبيا لتتحمل قوة هذه الأسمدة. وأوضح تحليل محتوى أنواع الکومبوست من العناصر الغذائية أن نسبة النتروجين خاصة کانت عالية، والذي کان له تأثيرا ضارا بالشتلات في بعض المعاملات. وقد تبين أن النباتات في المعاملات التي تشتمل على نسبة عالية من روث الدجاج کانت الأکثر تضررا عن المعاملات الأخرى وهذا ربما حسب المراجع کان نتيجة لزيادة ترکيز العناصر الغذائية خاصة النتروجين في هذا النوع من السماد أکثر من غيره. ولم تسجل اي اعراض مرضية على هذه النباتات.https://jppp.journals.ekb.eg/article_87414_99a63d353248784e829d9bfd60c1e8e5.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701الأمراض غير المعدية على أشجار الزيتون في مناطق غرب ليبيا6516598741510.21608/jppp.2013.87415ENخديجة فرجالعربيقسم وقاية النبات- کلية الزراعة- جامعة طرابلسنورية علیالعامريقسم وقاية النبات- کلية الزراعة- جامعة طرابلسالزروق أحمدالدنقليقسم وقاية النبات- کلية الزراعة- جامعة طرابلسمنى مختارفريوانجهاز تنمية وتطوير النخيل والزيتون- ليبياخيرية مصباحديابجهاز تنمية وتطوير النخيل والزيتون- ليبياJournal Article20200507 تشکل الأمراض الفسيولوجية والبيئية " الغير معدية " التي تؤثر على بساتين الزيتون في مناطق غرب ليبيا عائقا أمام تطوير والنهوض بهذه البساتين کماً ونوعاً، ولقد تم حصر العديد من تلک الأمراض والظواهر خلال هذه الدراسة مثل نقص بعض العناصر التي تمثلت في ظهور التبقعات الصفراء والبنية على حواف الأوراق والتي تتحول إلى اللون البني المحمر، إلى بقع محمرة أرجوانية على عنق ونصل الأوراق المصابة، ويعود ذلک إلى نقص عنصر الفسفور في تغذية النبات. يمثل الجفاف ونقص مياه الري إشکالية کبيرة في معظم مناطق الحصر، حيث أدى ذلک إلى ظهور أعراض اصفرار عام على الأشجار المتضررة أو تدهور وموت الأفرع أو الأشجار بالکامل. ان تکون ثمار زيتون صغيرة الحجم جدا بجانب الطبيعية الحجم قد يکون دليل على عقد الثمار بدون تلقيح أو إجهاض متأخر لأعضاء التأنيث في الأزهار مما أدى إلى تأخر نمو بعض الثمار في العديد من المناطق. وقد يکون ذلک نتيجة لقلة مياه الري، کما إن عدم انتظام الري في عدة مناطق کان سببا في ظهور التصمّغ على جذوع أشجار الزيتون. أظهرت الدراسة وجود أعراض تشقق أو تقرّح القلف نجمت عن تعرض أشجار الزيتون بتلک المناطق لفترات شديدة البرودة. يعتبر تشوه الأوراق من الأمراض التي رُصدت خلال هذه الدراسة ببعض مناطق الحصر وبخاصة مرض الورقة المنجلية. لقد تبث خلال هذه الدراسة أن عدم التوافق بين الأصل والطعم من الظواهر الفسيولوجية المنتشرة على أشجار الزيتون في العديد من مناطق الحصر، وفي الوقت الذي ظهرت فيه بعض الأمراض الفسيولوجية بمناطق مثل؛ (الخمس، الزاوية، العجيلات، زلطن، سوق الخميس، والرحيبات)، فإن تلک الأمراض لم تسجّل بمنطقة طريق المطار.https://jppp.journals.ekb.eg/article_87415_175bec6f6bb0e6ebb8be749e7fa37e69.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701PREFERABILITY OF DIFFERENT WHEAT AND RICE VARIETIES TO LESSER GRAIN BORER Rhizopertha . dominica F. INFESTATION:6616688741610.21608/jppp.2013.87416ENS SAwadallaEconomic Entomology Department, Faculty of Agriculture, Mansoura University, Egypt .A. H.Abd El – SalamEconomic Entomology Department, Faculty of Agriculture, Mansoura University, Egypt .R. B.Abo ArabPlant Protection Research Institute, Sakha, Kafr El-Sheikh, Egypt.El – Zahraa A.El – MaadawyPlant Protection Research Institute, Sakha, Kafr El-Sheikh, Egypt.Journal Article20200507Choice and non-choice tests were carried out to determine the varietal preference of <em>Rhizopertha dominica </em>F. under laboratory conditions. Regarding tonon-choice tests on different wheatvarieties , data revealed that, Sakha 93, Sakha 94 and Shandweel were the most preferred wheat varieties, while Seds 12, Gemeiza 11 and Egypt 2 were the least preferred wheat varieties. On the other hand, Sakha 105 was the most preferred rice variety, while Giza 181and Giza 177 were the least preferred rice varieties. In respect to free choice tests on different wheatvarieties , the results indicated that, Sakha 93 and Shandweel were the most preferred wheat varieties, while Seds 12, Gemeiza 11 and Egypt 2 were the least preferred wheat varieties. On the other hand, Sakha 105 was the most preferred rice variety, while Giza 181, Giza 177 and Egyptian jasmen were the least preferred rice varieties.<br /> <strong> </strong>https://jppp.journals.ekb.eg/article_87416_ae889a31324cdc9ffb0600befbbea6bd.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701TRI-TROPHIC INTERACTION AMONG HOST PLANTS, APHID SPECIES, AND COCCINELLA UNDECIMPUNCTATA L. UNDER LABORATORY CONDITIONS.6696828741810.21608/jppp.2013.87418ENA. H.Abdel-SalamEconomic Entomology Dept., Fac. of Agric., Mans. Univ., Mans. 35516, Egypt.Hala A. K.El-SerafyEconomic Entomology Dept., Fac. of Agric., Mans. Univ., Mans. 35516, Egypt.Amira A. A.Abdel-HadyEconomic Entomology Dept., Fac. of Agric., Mans. Univ., Mans. 35516, Egypt.Journal Article20200507Tri-trophic interaction among host plants, aphid species, and the predator, <em>Coccinella undecimpunctata</em> L. under laboratory conditions were studied. The developmental time of immature stages, survival percentage, and consumption of <em>Coccinella undecimpunctata</em> L. by feeding on <em>Aphis gossypii </em>Glover<em>, Myzus persicae</em> Sulzerand <em>Aphis craccivora </em>Koch that were reared on each of eggplant (<em>Solanum melongena </em>L.), potatoes (<em>Solanum tuberosum</em> L.), and faba bean (<em>Vicia faba</em> L.) plants was also determined.<br /> In respect of the developmental time of immature stages, the overall model, or among host plants or host plants-aphid species interaction indicated that there was no significant variation. Meanwhile, among aphid species, there was a significant variation.<br /> No significant differences occurred for survival as an overall model. Among host plants or aphid species or host plants-aphid species interaction, there was no significant variation.<br /> Regarding the consumption of the larval stage, the overall model, host plants, aphid species, or host plants-aphid species interaction revealed that there was a significant variation.<br /> Clearly, the results of this study indicated that the developmental time of immature stages, survival percentage, and consumption of <em>C. undecimpunctata</em> by feeding on <em>A. gossypii, M. persicae</em> and <em>A. craccivora </em>that were reared on each of eggplant, potatoes, and faba bean plants had effects on the biological characteristics of this predator. https://jppp.journals.ekb.eg/article_87418_d137096dd0284d45afdbeff3d5a8339e.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701BIOACTIVITY OF SOME NATURAL PRODUCTS ON SOME BACTERIAL PLANT PATOGENS6836888741910.21608/jppp.2013.87419ENN. M.AlmasoudiKing Abdulaziz University, Fac.of Meteorology, Environment and Arid Land Agric., Dept. of Arid Land Agric., Jeddah, Saudi ArabiaJournal Article20200507Bacterial plant diseases caused heavy yield and growth losses to agriculture crops worldwide. Among the most important bacterial plant diseases are soft rot, <em>Pectobacterium carotovorum</em> and crown gall bacteria, <em>Agrobacterium tumefaciens</em>. The application of chemicals to control both diseases affecting environment and consumers health. The antibacterial activity of three methanolic plant extracts , <em>Lantana camara , Rhazya stricta, Ruta chalepensis</em> and and Propolis as a nutral honey product on <em>A. tumenfaciens</em> and <em>P. carotovorum </em>were evaluated. The present study aims to use alternative methods to control these diseases with Propolis as a natural honey product and some plant extracts grown in Saudi Arabia. The propolis extract demonstrated strong inhibition activity against the tested plant pathogenic bacteria. The results showed that the inhibition zones were 14 mm and 13 mm at a concentration of 400 µg/ml for <em>P. carotovorum</em> and <em>A.</em> <em>tumefaciens</em> respectively. The results of <em>L. camara, Rh. stricta</em> and <em>R. chalepensis</em> at the same concentration were 13, 12 and 11 mm for <em>P. carotovorum</em> respectively, where the inhibition zones were 12, 11 and 11mm respectively for <em>A.</em> <em>tumefaciens</em>. The obtained results revealed that Propolis and these plant extracts are new promising potential sources of antibacterial compounds and good future practical applications for plant health. a promised alternatives to control bacterial diseases in field crops to avoid the use of chemical pesticides with harmful effects to environment and human health.https://jppp.journals.ekb.eg/article_87419_37d33548fd429a50d03b47413dbd4f04.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-36774720130701EVALUATION THE ACARICIDAL EFFECTS OF SOME PLANT EXTRACTS ON TWO SPOTTED SPIDER MITE TETRANYCHUS URTICAE KOCK UNDER LABORATORY CONDITION (ACARI: TETRANYCHIDAE)6896928742110.21608/jppp.2013.87421ENK .AAiadPlant Protection Res. Institute, Agric. Res. Center, Dokki, Giza,EgyptJournal Article20200507This experiment was conducted to evaluate acaricidal effects of several plant extract Aqueous garlic ' Anise oil 'Garlic oil and linen seed oil at different doses 1<sub>cm</sub>' 1.5<sub>cm</sub> and 2<sub>cm </sub>/litre of water in laboratory against spotted spider mites <em>Tetranychus urticae</em> koch . Results showed that mortality were 68 ' 86 and 96 at 1<sub>cm</sub> ' 1.5<sub>cm</sub> and 2<sub>cm</sub> for ' Anise oil ' Aqueous garlic and Aqueous garlic respectevely. Therefore it's recommended to be applied in biological control as part ofintegrated pest management programs. further studies needed to support those finding on other crops and pests.https://jppp.journals.ekb.eg/article_87421_37d4c544531f800c0c16bd445b82edeb.pdf