The populations of the spider mites Tetranychus urticae Koch (different stages) and their natural enemies i.e. predacious mites (families, Stigmaeidae, Tydeidae and Phytoseiidae) and the true spiders (families Saltisidae, Philrodomidae, Miturigidae, Thomisidae, Lycosidae and Araneidae) were studied in Beni Suef governorate during the cotton cultivated seasons, 2010 and 2011.The population differed according to the different sampling dates on the different cotton varities, Giza 80, 90 x ost, Dandra, Giza 83, Giza 89, Giza 90 and Giza 91 varities.The cotton (Giza 90 variety) was the most susceptible to the spider mite infestation in the two seasons, as, it harboured 96.625 and 83.5 mite individuals, per leaf in the seasons 2010 and 2011,respectively. The statistical analysis of obtained data indicated that the least significant differences for different varities were 39.559 and 19.779 in case of season effect. Also, Giza 80 and Giza 83 varities harboured more predacious mites during 2010 (6.5) individuals for each, while each of Giza 80 and Giza 90 harboured during 2011, 6 predacious mites. The average collected numbers of the spiders was 12.25 individuals on Dandra variety during 2010 while on Giza 83 variety during 2011 season was 8.25 individuals. The study indicated that there was generally positive correlation between the two spotted spider mite and their associated natural enemies.
Asca aegyptiaca sp. nov., is desc1ibed ti•om Egypt, the genus is recorded tor the tirst time and collected ti•om leaves and debris of soybean at Mcnia governorate (Midle Egypt).
Dry yeast granules, cheese and crushed wheat were tested as a nourishment of Rhizoglyphus echinopus (Fumouze & Robin, 1868) under laboratory conditions of 25±1ºC and 70% R.H. Statistical analysis of the obtained results showed that developmental stages, fecundity and life table parameters of the acarid mite , R. echinopus were significantly different among the three types of food, whereas, the total immature stages were (13.08 & 11.9), (13.5 & 12.4) and (16.0 & 15.8 days) for female and male when fed on dry yeast, cheese and crushed wheat, respectively. Female oviposition period lasted (15.7, 20.3 and 23.00 days) and deposited average numbers of eggs & a daily rate (245.4 & 15.86), (190.8 & 9.4) and (101.5 & 4.4) eggs, respectively. Obtained data from the biochemical analysis of food composition showed that the dry yeast granules which have the highest protein content (30.63 %) seem to be an attractive and effective diet for rearing the acarid mite, R. echinopus in the laboratory.
Biological studies were carried out on the stored grain mite Gohieria fusca (Oud.), where it fed on three different food sources: dry yeast granules, crushed wheat and crushed maize to determine the ability of mite Gohieria fusca to feed on, develop, fecundity, reproduction and life table parameters as a sole food sources under laboratory conditions of 25±2 ºC and 65% R.H. Obtained results and statistical analysis showed that developmental stages, fecundity, reproduction and life table parameters of mite were affected by different food types, whereas, total immature stages lasted (31.22 & 29.92), (34.73 7 33.38) and (31.81 & 29.78) days for female and male, when mite fed on the above mentioned diets respectively. Female oviposition period lasted 26.8, 30.9 and 29.1 days, which deposited an average numbers of eggs with a daily rate (132.9 & 4.96), (111.5 & 8.87) and (91.3 & 3.14) eggs, when mite fed on dry yeast granules, crushed wheat and crushed maize respectively.
وقف الدكتور فاضل صالح السامرائي على معاني الحروف ورصدها بدقة ليبين لنا الدلالات الدقيقة معتمداً على السياق والمقام الذي ورد فيه الحرف, وقياسه في هذا كله المعنى فهو معني بإظهار المعنى, فكان لهذا التوجيه أثر كبير في الابتعاد عن آراء النحاة القدامى, فكانت آراؤه في معاني حروف الجر موجهة بحسب المعنى وفي أغلبها مخالفة لآراء النحاة كما في (إلى) فهي لا تخرج عن معنى الانتهاء, وتخصيص(التاء) بلفظ الجلالة, والجر عنده ليس بـ(رب) المحذوفة بل بـ(الواو), و(الكاف) ليست زائدة, و(من) عنده لعموم الابتداءات, فهذه الحروف موجهة عند السامرائي بحسب المعنى, وهو يريد إبقاء الحرف على معناه الأصلي, وعلى هذا فالبحث يدور على رأي السامرائي بعرضه أولاً ومن ثم سرد آراء النحاة لنتبين مدى قرب أو بعد السامرائي عنهم, والختام يكون بالتوفيق بين الآراء أو الترجيح لأحدهما على الآخر.
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