@article { author = {El-Batran, Laila and Awadalla, S. and Fathy, H. and Shareef, M.}, title = {EFFECT OF DIFFERENT HOST PLANTS ON THE BIOLOGICAL ASPECTS OF THE CITRUS MEALYBUGS Planococcus citri RISSO. (Homopetra: PSEUDOCOCCIDAE)}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {1-4}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.49596}, abstract = {The present study were carried out to study the influence of different host plants on some biological characteristics ofcitrus mealybugs Planococcus citri. The experiments were carried out in the laboratory of the Economic Entomology Department, Faculty of Agriculture, Mansoura University under daily fluctuated temperature degrees of 28.4±3.1˚c and R. H. 70±5% on different host plants. The total duration of immature stages (incubation period and nymphal stage) were the shortest when the citrus mealybug P. citri reared on guava followed by ficus and succari orange and represented by 24.7±2.90, 28.7±2.92 and 30.5±3.19 days with significant differences, respectively. Meanwhile, the longest duration of the developmental stages were recorded on mango and grapevine and represented by 32.7±3.41 and 33.7±3.66 days, respectively. According to the survival rates as an index of suitability of different host plants, the suitability in decreasing order was on guava trees (0.78), ficus religiosa (0.74), succari orange (0.64), mango (0.60) and Grapevine (0.53). The longest oviposition period, the longest adult longevity and the highest fecundity for adult females of P. citri  were recorded when reared on guava followed by ficus religiosa and succari orange. Meanwhile the shortest oviposition  period, the shortest adult longevity and the lowest fecundity for adult females of P. citri were recorded when reared on grapevine followed by mango.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_49596.html}, eprint = {https://jppp.journals.ekb.eg/article_49596_7f3ce04b1d46091374f44d40099879f1.pdf} } @article { author = {Shanab, L. and Awadalla, S. and Bayoumy, M. and Al-Jbouri, M.}, title = {EFFECT OF DIFFERENT CITRUS VARIETIES AS HOST PLANTS ON THE BIOLOGICAL ASPECTS OF THE SEYCHELLES FLUTED SCALE Icerya seychellarum (WESTWOOD).}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {5-8}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.49603}, abstract = {Laboratory experiments were carried out to study the effect of different citrus varieties as host plants on the biological aspects of the Seychelles fluted scale Icerya seychellarum. The experiments were carried out in the insectary of the Economic Entomology Department, Faculty of Agriculture, Mansoura University under Fluctuated temperature degree of 22.4±3.1ºc and R.H. 60±5 %. Results represented that, the total developmental period was the shortest when I. seychellarum reared on common balady orange which represented by 48.7±1.3 days. The survival rates during the nymphal stage of I. seychellarum were the highest on common balady orange, followed by Lemon, Navel orange and  the lowest observed on Succari (sweet) orange and Mandarin. According to the previous results the index of suitability of different citrus host plants arranged in descending are as follows : on common balady orange, Lemon, Navel orange, Succari (sweet) orange and Mandarin. The oviposition period, adult longevity and the fecundity was the highest when the adult females were reared on common balady orange (23.5±1.1, 59.4±2.3 days and 56.2±4.1 eggs/female), respectively.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_49603.html}, eprint = {https://jppp.journals.ekb.eg/article_49603_82f7028041c061a6caa2aec481fb49d8.pdf} } @article { author = {Shawer, Dalia and Taha, E. and Emeran, A.}, title = {EFFECT OF FABA BEAN – CEREALS INTERCROPPING AND NITROGEN FERTILIZATION ON THE INFESTATION BY THE LEAFMINER Liriomyza trifolii (BURGESS) ON FABA BEAN PLANTS.}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {9-14}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.49618}, abstract = {Field experiments were conducted at Kafr El-Sheikh, Egypt over two winter seasons, 2006/07 and 2007/08, to evaluate the effect of faba bean-cereals intercropping and nitrogen fertilization on leafminer, Liriomyza trifolii (Burgess) infestation on two cultivars of faba bean Vicia faba. Level of leafminer infestation increased gradually from mid-December reaching maximum levels by the end of March. Larvae population increased gradually reaching a maximum level by mid-February, and then gradually decreased and completely disappeared by the end of March. Triticale intercropping with Faba bean, cv. Giza Blancka, and nitrogen fertilization (50 kg /Feddan) resulted in the lowest susceptibility to leafminer infestation during the first and second seasons. Wheat intercropping with faba bean, cv. Giza Blancka was the best treatment to reduce the population of leafminer larvae, while barley intercropping with faba bean, cv. Yossif El-Sediek resulted in the highest leafminer population.}, keywords = {Faba bean,Intercropping,leafminer}, url = {https://jppp.journals.ekb.eg/article_49618.html}, eprint = {https://jppp.journals.ekb.eg/article_49618_40cc9db470dad6ae538edd414e00b63d.pdf} } @article { author = {Mesbah, Amira and Mohamed, Azza and El-Kawas, H.}, title = {BIOLOGICAL STUDIES AND LIFE TABLE PARAMETERS OF Phyllotetranychus gawadii HALAWA, MESBAH & MOHAMED (ACARI: TENUIPALPIDAE) REARED AT TWO TEMPERATURES}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {15-19}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50050}, abstract = {The development, survival and life table parameters of the tenuipalpid mite, Phyllotetranychus gawadii Halawa, Mesbah & Mohamed fed on date palm, Phoenix dactylifera L. leaves were determined at 25 and 30±2° C and 65±5%R.H. in laboratory. The data showed that female and male had three nymphal stages before reaching adulthood. The tritonymphal stage was recorded for the first time. The shortest periods of the incubation period, immature stages and longevity were (13.23, 36.83, 65.58) days and (12.18, 25.03, 48.40) days for female and male, respectively, at 30ºC. The temperature 30 ºC enhanced the maximum value of intrinsic rate of increase (rm) 0.0629 individuals / ♀ / day, and maximum net reproductive rate (R0) 44.01 individuals / generation. Maximum fecundity was obtained at 30ºC after 64.87 days as 3.86 eggs / ♀ / day. The mean generation time (T) and generation doubling time (DT) values had affected by temperature. }, keywords = {Tenuipalpidae,Phyllotetranychus gawadii,Reproduction,life table,date palm}, url = {https://jppp.journals.ekb.eg/article_50050.html}, eprint = {https://jppp.journals.ekb.eg/article_50050_8d3ff90342465644557d2f9622b46a8e.pdf} } @article { author = {Dahi, H. and Taha, Rehab and Ibrahim, Walaa}, title = {NUTRITIONAL EFFICIENCY AND ITS RELATION TO Bombyx mori L. PRODUCTIVITY UNDER DIFFERENT CONSTANT TEMPERATURES}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {21-26}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50051}, abstract = {All experimental studies on Bombyx mori L. under suitable temperatures aim to improve silk, cocoons and eggs productions. The fifth larval instar was reared under three different constant temperatures (20, 23 and 26 °C) to determine the growth, dietary efficiency, silk production and egg yield. Rearing performance as larval weight, duration and growth rate, effective rate of rearing, disease incidence, pupal weight, pupation ratio, pupal duration, adult longevity, fecundity and fertility were recorded. Cocoon parameters as cocoon, cocoon shell weights, cocoon shell ratio and nutritional parameters like ingesta, digesta, and approximate digestibility percentage were calculated and recorded. Silk filament length and filament breaks were recorded during cocoon reeling. Significant variations in the performance of B. mori were noticed due to the influence of temperature. Most of these studied parameters were significantly high for larvae reared at 20°C, as well as, the feed conversion efficiency parameters, ingesta and digesta were required to produce one gram of cocoon were higher in larvae reared at 20°C. Female moths were capable to mate with more than one male which could produce more egg laying and consequently fertile eggs.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_50051.html}, eprint = {https://jppp.journals.ekb.eg/article_50051_fd5042a409cc3221837609acab3f6b25.pdf} } @article { author = {Sallam, Gihan and Abd El-Azim, Nahla}, title = {BIOLOGY OF THE SPIDER Peucetia arabica SIMON, 1882 (ARANEAE: OXYOPIDAE) UNDER LABORATORY CONDITIONS.}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {27-30}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50052}, abstract = {The spider Peucetia arabica Simon, 1882 was found among wild plants in Gebel Elba, Red Sea Governorate, Egypt. Its life cycle was studied in laboratory. Males reached maturity after 7 spiderlings instars lasted (308 ± 2.34 days), while females passed through 8 spiderlings instars durated  (345 ± 11.5 days). Different instars were reared on different stages of larvae of cotton leaf worm Spodoptera littoralis (Boisd.). Food consumption was also noticed, in addition to, mating behavior was observed.}, keywords = {Spiders,Life cycle,feeding,Mating behavior,Oxyopidae,Peucetia arabica,Egypt}, url = {https://jppp.journals.ekb.eg/article_50052.html}, eprint = {https://jppp.journals.ekb.eg/article_50052_7b8b086b8bf43542b6bd1afa5cd63e2f.pdf} } @article { author = {Awadalla, Hagar and Ghanim, A.}, title = {POPULATION DENSITY OF THE MAIN MEALYBUG SPECIES ATTACKING MANGO TREES AND THEIR ASSOCIATED PREDATORY INSECTS AT MANSOURA REGION}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {31-40}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50053}, abstract = {The present studies were carried out in the experimental farm belonging to the Faculty of Agriculture, Mansoura University to evaluate the population density of the main mealybug species attacking mango trees (Mangifera indica L.), and their the seasonal activity of the main associated predatory insects. Also the interaction between these insect pests and their associated predatory insects in two successive years 2013/14 and 2014/15. The highest peak of Icerya aegyptiaca was recorded in the first week of November 2013 (67 indiv.) during the first year and in the fourth week of September 2015 (59 indiv.) during the second year. Icerya seychellarum recorded the highest peak in the third week of November 2013 during the first year and in the first week of November 2014 in the second year and represented by 496 and 516 indiv., respectively. While, the highest peak of Planococcus citri was found in the third week of July 2014 (156 indiv.) and in the fourth week of September 2015 (281 indiv.) during the two successive years, respectively. Moreover, the obtained results showed that Macnollicoccus hirsutus had the highest peak in the fourth week of August 2014 (191 indiv.) during the first year and in the second week of August 2015 (227 indiv.) in the second year.  The highest peak of Rodolia cardinalis in the first week of November 2013 and represented by 84 and 93 indiv. for the two successive years 2013/14 and 2014/15, respectively. Chrysoperla carnea had the highest peak in the second week of August 2014 (37 indiv.) in the first year and in the end of the second year (43 indiv.). While, the highest peak of Nephus includens was found in the second week of August 2014 (22 indiv.) and in the second week of September 2015 (29 indiv.) for the two successive years, respectively. Meanwhile, the highest peak of Scymnus coccivora showed in the second week of August 2014 and 2015 for the two successive years and represented by 29 and 25 indiv., respectively. The highest average number of the main predatory insects were recorded in autumn and summer seasons and were coincided with the highest average number of the mealybug species during the two successive years 2013/14 and 2014/15. A highly positive significant effect were recorded between the highest abundant of the mealybug species as I. seychellarum and P. citri and the highest abundant predatory insects as R. cardinalis and C. carnea during the two successive years.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_50053.html}, eprint = {https://jppp.journals.ekb.eg/article_50053_4187dfbd1fecd9f01dafa0f30e6045c1.pdf} } @article { author = {Amer, Reda and Yacoub, Sh.}, title = {IMPACT FACTORS OF TWO NON-CONVENTIONAL COMPOUNDS ON Spodoptera littoralis (BOISD.)}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {41-49}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50054}, abstract = {Cotton Leaf worm, Spodoptera littoralis (Boisd.) treated as 4th instar larvae by two compounds of acetyl salicylic acid (A.S.A) and chlorpheniramine maleate (C.P.M) to evaluate its efficacy on S. littoralis larvae as alternative new compounds for insecticides. Also, some biological and life table parameters of S. littoralis treated as 4th instar larvae were estimated. In addition, S. littoralis moths treated by LC50 of A.S.A and C.P.M to evaluate the mating frequency & ability and batches fluff cover shape deposited by moth in different treatments (T♂xT♀, U♂xT♀, T♂xU♀ and U♂xU♀). Obtained results could be summarized as following: Tested compounds of A.S.A and C.P.M were efficacy on S. littoralis larvae, but C.P.M was more toxicity and effective on the most estimated parameters than another compound (A.S.A). Compounds of A.S.A and C.P.M had increased in larval & pupal mortalities, control of hatchability and sterility; also, tested compounds decreased the pupation, moth's emergency, number of eggs per female, egg hatchability and fecundity of S. littoralis treated as 4th instar larvae. In addition, its caused decreasing in mating frequency and ability of different crosses moth and the batches deposited without fluff covers and the egg- masses had unstable partly on the deposited surface until hatching, especially in T♂xT♀ treatments. Moreover, the two tested compounds, especially C.P.M  had drastically decreased the life table parameters as number of females/female (Mx), survival rate (Lx), net reproductive rate (Ro), intrinsic rate of natural increase (rm), and finite rate of increase (erm). Aforementioned compounds had increased from generation (T) and doubling (DT) times. So, A.S.A and C.P.M are considered affecting compounds against two harmful stages (larvae and moths) of S. littoralis, especially C.P.M, that it could be used to reduce the insecticide applications but need more experiments in a wide range.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_50054.html}, eprint = {https://jppp.journals.ekb.eg/article_50054_21b8c60fc7ecaa4f98699b3e0df97692.pdf} } @article { author = {Awadh, G. and Zhao, D.}, title = {VALIDATION OF NEW MULTI-RESIDUE METHOD FOR THE DETERMINATION OF ORGANOPHOSPHORUS INSECTICIDES IN CHRYSANTHEMUM FLOWER BY CAPILLARY GAS CHROMATOGRAPHY}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {51-57}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50055}, abstract = {A method for the analysis of 8 organophosphorus (OP) with wide range of physico-chemical properties in Chrysanthemum flower was developed and validated. The procedure involved the extraction of the spiked sample (5 g) with 100 mL acetone and the final volume was not subjected to any clean-up procedure. The analyte concentrations were determined through gas chromatography GC-9A, equipped with flame photometric detector (FPD). The mean recoveries of the spiked blank samples at three concentrations for different pesticides were found in the range of 91.00–99.67 % and relative standard deviation lower than 12.0%. Limit of detection (LOD) of the method ranged between 0.06 and 0.08 mg kg-1 and the limit of quantitation (LOQ) were varied from 0.09 to 0.1 mg kg-1. The selected parameters for method validation (precision, accuracy, calibration function, sensitivity, selectivity, limit of detection and limit of quantitation) were within the acceptable limits according to the EU criteria (SANCO) for the 8 insecticides included in the validation.}, keywords = {Chrysanthemum flower,Multi-residue analysis,Gas chromatography,validation}, url = {https://jppp.journals.ekb.eg/article_50055.html}, eprint = {https://jppp.journals.ekb.eg/article_50055_138265a702275fd6b818846841fe316e.pdf} } @article { author = {Moustafa, Nabila}, title = {USE OF PROTEIN ELECTROPHORESIS FOR QUALITATIVE AND QUANTITATIVE DIFFERENTIATION OF POWDERY MILDEW (Blumeria graminis) DISEASE SEVERITY ON BARLEY GENOTYPES}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {59-68}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50056}, abstract = {Ten barley (Hordeum vulgare L.) genotypes, five lines originated from International Barley Germplasm Pool (IBGP) and (Nile valley Red Sea Regional Program (NVRSRP), International Center for Agricultural Research in the Dry Area (ICARDA), Aleppo, Syria, and the five commercial varieties, Giza 123, Giza 124, Giza 125, Giza 126 and Giza 2000 were evaluated for (Blumeria graminis f.sp. hordei) powdery mildew resistance. The genotypes were tested at the seedling stage with 16 differential isolates of Powdery mildew and at adult stage under Egyptian conditions during 2012/2013 growing season. Lines LB-Iran and F6-1-KF showed the resistance to all isolates and lowest ratings of disease severity of 18.75 and 20.31% respectively, while the remaining lines showed intermediate ratings resistance to isolates and disease severity ranging from 39.06 to 46.88%. The commercial varieties showed that about of resistant to all isolates ranging from 6.25 to 43.75% and highest ratings of disease severity ranging from 64.06 to 85.94%. Giza 2000 is the best commercial variety for resistant to isolates and lowest of the diseases severity was 43.75 and 64.06% respectively. Proteins of different genotypes were separated by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) from healthy and diseased plants at adult stage. Two bands with MW 70 and 24 KDa were found only in healthy plants of resistant genotypes, and absent from susceptible genotypes. These protein markers could be used to qualitatively differentiate between resistant and susceptible genotypes. Linear regression analysis constructed one factor model to predict powdery mildew severity. This model indicated that a protein with MW 71 KDa accounted for 63.19% of the total variation in severity ratings. This result indicates that SDS-PAGE of plant proteins may provide a supplementary assay to field tests to distinguish quantitatively between Powdery mildew resistant or susceptible genotypes}, keywords = {Blumeria graminis,Hordeum vulgare,powdery mildew,barley and electrophoresis}, url = {https://jppp.journals.ekb.eg/article_50056.html}, eprint = {https://jppp.journals.ekb.eg/article_50056_d200b995cc6766f14b4afe974d6ea0fc.pdf} } @article { author = {Awadalla, S. and Hendawy, A. and Ismael, M.}, title = {POPULATION DENSITY OF CHIRONOMID SPECIES AND EVALUATION OF SOME INSECTICIDES AGAINST LARVAE AT KAFR EL-SHEIKH GOVERNORATE RICE FIELDS}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {69-72}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50057}, abstract = {This study was carried out at El-Sabein village, Sidi Salem District, Kafr El-Sheikh governorate during two successive seasons; 2014 and 2015 for studying the population fluctuations of the rice bloodworms, Chironomus spp. and evaluating three insecticides against the chironomid larvae at rice nursery. The population density of Chironomus spp. exhibited two peaks in each season. Diazinon was the most efficient insecticide in reducing the population density of Chironomus spp. larvae with reductions of 88.62 and 89.85% after 24 hours of treatment while the reductions were 87.14 and 89.42% after 7 days in the two seasons of study respectively. It was followed by Lambada- cychlothrin while Emamectin benzoate was the least effective compound that gave reductions of 76.48 - 77.56% and 79.09 - 82.94%.}, keywords = {insecticide,Chironomus spp,rice field,nursery}, url = {https://jppp.journals.ekb.eg/article_50057.html}, eprint = {https://jppp.journals.ekb.eg/article_50057_be6f6b20e86a8b77a6c87475847381d7.pdf} } @article { author = {Embaby, E. and Lotfy, Dalia}, title = {CONTROLLING CABBAGE APHID (Brevicoryne brassicae L.) USING ISOLATED MYCOINSECTICIDES}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {73-77}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50060}, abstract = {This study aims to isolate and identify entomopathogenic fungi and evaluate their virulence against the cabbage aphid, Brevicoryne brassicae L. A weekly survey of pests present on cabbage crop at El Dair region, Qualubia Governorate was carried out during 2014 – 2015 season. The results indicated that, cabbage aphid, B. brassicae, was moderate collected. The susceptibility of cabbage aphid B. brassicae, for two entomopathogenic fungi, i. e., Beauveria bassiana and Metarhizium anisopliae, were investigated. Where, B. bassiana gave higher levels of mortality against adults of cabbage aphid with low lethal time (LT50). The mortality percents of both entomopathogenic fungi were increased with increasing the period after treatment.}, keywords = {Cabbage crop,Entomopathogenic fungi,Brevicoryne brassicae (L.)}, url = {https://jppp.journals.ekb.eg/article_50060.html}, eprint = {https://jppp.journals.ekb.eg/article_50060_de5bc774c277ac1afd022e632ac98988.pdf} } @article { author = {Salem, Fathia}, title = {COMPARE SILICA NANOPARTICLES WITH TWO INSECT PATHOGENS IN CONTROLLING COTTON LEAFWORM, Spodoptera littoralis BOISD. IN EARLY SUGAR BEET PLANTATION AND THEIR EFFECTS ON SOME ASSOCIATED NATURAL ENEMIES}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {79-83}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50061}, abstract = {The application of nanomaterials in agriculture aims in particular to reduce insecticides in plant protection, minimize nutrient losses in fertilization, and increase yields through optimized nutrient management. So, it could be look for alternative method to control Spodoptera littoralis Boisd.  This experiment was conducted out at El-Riad region, Kafr El-Sheikh Governorate, during two successive seasons 2014 and 2015 to compare the efficacy of silica nanoparticles (SiNPs) at three rates (20, 40 and 60 g/fed) with two pathogens dipel DF at 200 g/fed and biofly 300 ml/fed in controlling S. littoralis in early sugar beet plantation. Also, this study aimed to show the negative side effects on some associated natural enemies; true spider, Chrysoperla carnea (Stephens) and Coccinella spp. Results showed the highest rate of SiNPs (60 g/fed) was the highest effectiveness in reducing the numbers of S. littoralis; 59.75 and 61.77% reduction in larvae during two season, respectively. While the two tested insect pathogens came in the second category in controlling the insect. On the other hand biofly showed the highest side negative effect on associated predators followed the dipel DF, while the lowest effect recorded from SiNPs at low rate (20 g/fed).}, keywords = {Silica nanoparticles,Cotton leafworm,Sugar beet,natural enemies}, url = {https://jppp.journals.ekb.eg/article_50061.html}, eprint = {https://jppp.journals.ekb.eg/article_50061_71d739e07c4861e93a115844cd3204a5.pdf} } @article { author = {Badr El-Din, Nariman and Ali, Doaa and Othman, Reem}, title = {INHIBITION OF EXPERIMENTAL CARCINOGENESIS BY THE BIOACTIVE NATURAL PRODUCT BIOBRAN.}, journal = {Journal of Plant Protection and Pathology}, volume = {7}, number = {1}, pages = {85-91}, year = {2016}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2016.50064}, abstract = {To investigate  the  protective effects of  biobran against N-nitrosodiethyamine (NDEA) and carbon tetrachloride CCl4-induced hepatocarcinogenesis in rats. Hepatocarcinogenesis was induced in rats by a single intraperitoneal (i.p.) injection of N-nitrosodiethyamine (NDEA) at a dose of 200 mg/kg body weight followed by weekly subcutaneous injections of CCl4 (3 ml/kg) for 6 weeks, as the promoter of carcinogenic effect. After administration of the carcinogen, 25 mg/kg/day of Biobran were administered i.p., five times a week throughout the study. At the end of  20 weeks, the body weight, liver weight were measured, blood samples  were collected for liver function tests, liver biopsies were processed for histopathology examination. Results demonstrated that biobran has significantly prevented the decrease of the body weight and the increase in the liver weight caused by NDEA.  Liver function tests showed significant increase in serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), and γ -glutamyl transpeptidase (γ -GT) of untreated NDEA group, meanwhile treatment  with Biobran to rats exposed to carcinogens, significantly minimized the  elevation of  the  liver  function  enzymes level  to be comparable with the normal control values. Histopathological examination of the liver sections  of rats subjected to (DENA + CCl4) treatment revealed fibrosis and fatty infiltration of hepatocytes, with inflammatory collection and loss of architecture Biobran treatment showed minimal changes in hepatocyte morphology and histology with no inflammation. this study showed that  Biobran has a protective effect against hepatocarcinogenesis induced by NDEA and CCl4 in rats.}, keywords = {N-nitrosodiethylamine,Carbon tetrachloride,Carcinogen,Biobran}, url = {https://jppp.journals.ekb.eg/article_50064.html}, eprint = {https://jppp.journals.ekb.eg/article_50064_8dff5064a9570e0c906180a43379cf33.pdf} }