ORIGINAL_ARTICLE
CHEMICAL AND PHYSICAL PROPERTIES OF SOME EGYPTIAN AND LIBYAN HONEYS
Six different types of Egyptian honeys (Citrus, Clover, and Cotton) and Libyan honeys (Rabeay, Sidir and Thymus) were collected from different regions and studied. The aim of the present work was to describe honeys, in order to contribute to their characterization for commercial purposes. Samples were physicochemical and sensory examined using a quantitative descriptive analysis method. It could be concluded that Libyan honeys had the highest viscosity values than the Egyptian honeys.
It is not surprising that potassium (K+) was quantitavely the most important mineral present higher values of 1934.7 ppm. Meanwhile, manganese was the inferior of all honey types ranged from (1-1.5 ppm) in citrus and thymus honeys, respectively. Sidir honey from Wady El Hay was outstanding superior for the contents of Mn (5 ppm) than all the other tested honeys. Citrus honey was the inferior from all of the others honeys for Ca, Mg, Na, K, Fe and Mn. Proline the most important from a quantitative point of view was followed by Aspartic amino acids. Sidir honey has the highest values of NH4. Thymus honey has the highest number of total amino acids of all samples followed by Cotton honey represented by 6.080 and 4.920 mg/g., respectively. Whereas, Rabeay honey was the least in total amino acids, represented by 0.488 mg/g. Thymus and Citrus honeys contain the largest number of amino acids of all honeys but thymus was superior to citrus honey in quantities of amino acids existing. Honeys were correctly classified according to its floral origin. Further studies are needed in order to investigate other floral origins to provide a robust model to classify honey samples from this region.
https://jppp.journals.ekb.eg/article_86519_fe13d7607e94cf0febb9e81978495e5e.pdf
2011-08-01
731
740
10.21608/jppp.2011.86519
Honey analysis
Amino acids
minerals
physical characters
geographical origin
A.
Taha
aaismail@kfu.edu.sa
1
Beekeeping Research Dept., Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, Egypt.
AUTHOR
Asmaa
Eissa
2
Beekeeping Research Dept., Plant Protection Research Institute, Agriculture Research Center, Dokki, Giza, Egypt.
AUTHOR
ORIGINAL_ARTICLE
EVALUATE THE APPLIED OF THE EGG PARASITOID Trichogramma evanesces WEST. TO REDUCE THE INFESTATION OF THE LESSER WORM, Spodoptera exigua HB. IN SUGAR BEET FIELDS AT EL-AIAT, REGION, GIZA GOVERNORATE.
Four releases of egg-parasitoid Trichogrammaevanesces West (Hymenoptera: Trichogrammatidae) to control Spodoptera exigua Hb.were applied. Releases were carried out during March throughout the two seasons (2005/2006 and 2006/2007) in sugar beet fields at El-Aiat, Giza Governorate. The four releases of the parasitoid successfully suppressed the infestation with S. exigua on sugar beet plants. The percentage of reduction in larvae population of this insect were 83.8% in the first season and 80.0% in the second season
https://jppp.journals.ekb.eg/article_86520_47570b367124e374dcd0b9cbef758416.pdf
2011-08-01
741
747
10.21608/jppp.2011.86520
M.
Mahmoud
1
Plant Protection Dept., Fac. Agric., Al-Azhar Univ., Cairo.
AUTHOR
I.
Ibrahim
2
Plant Protection Dept., Fac. Agric., Al-Azhar Univ., Cairo.
AUTHOR
M.
El-Shorbagy
3
Egyptian Sugar and Interpreted Industries Co. (E.S.I.I. C).
AUTHOR
M.
Mohisen
4
Egyptian Sugar and Interpreted Industries Co. (E.S.I.I. C).
AUTHOR
ORIGINAL_ARTICLE
EFFICIENCY OF INSECTICIDE ,BIOCIDE AND RELEASE OF Trichograma evanescens WEST WOOD IN REDUCING COTTON BOLLWORMS INFESTATION AT KAFR EL-SHEIKH.
This study was carried out at the Farm of Sakha Agricultural Research Station, Kafr El-Sheikh governorate during three successive seasons; 2008, 2009 and 2010 for assessing some agents for controlling the cotton bollworms, Pectinophora gossypiella (Saund.) and Earias insulana (Boisd.) Result showed that the most efficient insecticide against P. gossypiella larvae was sumi-alpha withe reduction 80.9, 78.7 and 79.9% in the first spray while in the second spray the reduction were 82.1, 85.2 and 83.7% in the three seasons of study, 2008, 2009, 2010 respectively Biovar and protecto were the least effective compounds in controlling this pest. As for Earias insulana larval population took almost the same trend with sumi-alpha while biovar and protecto were the least effective. Releasing trichograma evanescence West wood in two waves gave reduction for P. gossypiella and Earias insulana larvae with ranges of 31.7- 44.8 and 23.3 -36.7 % respectively .
https://jppp.journals.ekb.eg/article_86521_ee940b48d82262b635af56287ab0cada.pdf
2011-08-01
749
756
10.21608/jppp.2011.86521
F.
M.
1
Econ. Entomol. Dept., Fac. Agric., Kafrelsheikh Univ.
AUTHOR
F.
Abou-Attia
2
Econ. Entomol. Dept., Fac. Agric., Kafrelsheikh Univ.
AUTHOR
M .
Metwally
3
Plant Prot. Dept., Sakha Agric. Res. St., Agric. Res. Cent.
AUTHOR
M.
Ismail
4
Plant Prot. Dept., Sakha Agric. Res. St., Agric. Res. Cent.
AUTHOR
ORIGINAL_ARTICLE
IMPROVEMENT THE PHYSICO-CHEMICAL PROPERTIES AND EFFICIENCY OF SOME INSECTICIDES FORMULATION BY USING ADJUVANTS AGAINST COTTON LEAFWORM Spodoptera littoralis (BOISD.)
The effect of different groups of chemical additives: surfactants (polyethylene glycol 600 dilaurate, polyethylene glycol 600 monolaurate and Sisi 6), sticking agents (Glue and Arabic gum), thickening agents (poly acryl amid and hydroxy methyl celelluse) and acidifying agents (citric acid, oxalic acid, sulphonic acid and tartaric acid) on physico-chemical properties, efficiency and persistence of Curacron and Superalpha were studied against 4th instar larvae of the cotton leafworm S. littoralis (Boisd.). The surface tension and pH value of insecticides decreased whereas the viscosity and conductivity increased as a result of mixing with the adjuvants. Such change in physical properties of insecticides led to increase in their retention and insecticidal efficiency. Generally the effect of tested additives on physico-chemical properties of Curacron and superalpha was as follow: Sulphonic acid gave the highest decrease in surface tension. Polyacryl amid and hydroxyl methyl celelluse (HMC) recorded the highest increase in viscosity. Oxalic acid gave highest increase in electrical conductivity and lowest decrease in pH value of tested insecticides. Sisi 6 increased effectiveness of 3/4 recommended rate of Curacron to be higher than full recommended rate against S. littoralis (Boisd.), but polyacryl amid increased the persistence of Super alpha to be higher than 3/4 recommended rate but less than complete rate.
https://jppp.journals.ekb.eg/article_86522_89644434b2183d871d35a3612de5d12e.pdf
2011-08-01
757
764
10.21608/jppp.2011.86522
A.
El-Sisi
1
Central Agric. Pesticides Lab., Agric. Res. Center, Dokki, Giza, Egypt
AUTHOR
A.
Abd El-Mageed
2
Plant Protection Res. Inst., Agric. Res. Center, Dokki, Giza, Egypt
AUTHOR
Tmador
El-Asawi
3
Physical Chemistry Dept., Fac. Sci., Benha university, Egypt.
AUTHOR
R.
El-Sharkawy
reda_elsharkawey@yahoo.com
4
Plant Protection Res. Inst., Agric. Res. Center, Dokki, Giza, Egypt
AUTHOR
ORIGINAL_ARTICLE
دراسة تأثير الصنف النباتي والعوامل المناخية في توزع وانتشار الأطوار المختلفة لحشرة بسيلا الزيتون Euphyllura olivine Costa في محافظةالقنيطرة منطفة خان أرنبة
تمت دراسة توزع وانتشار أطوار حشرة بسيلا الزيتون Euphyllura olivine Costa في محافظة القنيطرة منطقة خان أرنبة
على خمسة أصناف زيتون هي: الفرنتويو ايطالي, القيسي, الصوراني, الدان و الخضيري وذلک خلال عامي 2008-2009. بينت النتائج إن الحشرة تقضي فصل الشتاء على هيئة حشرة کاملة وتعاود نشاطها عندما تصل درجة الحرارة الخارجية إلى 11-15درجة مئوية. تبدأ الأنثى بوضع البيض على النموات الخضرية الحديثة في بداية شهر آذار وتبدأ الأنثى بوضع البيض عند ظهور العناقيد الزهرية(على کأس الزهرة).
تتوقف الإناث عن وضع البيض عندما تتجاوز درجة الحرارة الخارجية 20 درجة مئوية, تدخل الحشرات الکاملة في فترة بيات ( بيات صيفي).أظهرت النتائج أن اعلي نسبة بيض کانت على درجة حرارة 11-15°م ورطوبة 61-70% وکذلک عدد حوريات العمر الأول والثاني وحوريات العمر الثالث والرابع والخامس والحشرات الکاملة على الدرجة 21-25°م ودرجة رطوبة41-50%.
بينت نتائج هذه الدراسة وجود جيلين ربيعيين وعدم ظهور الجيل الخريفي خلال عامي الدراسة بعکس ماتذکر المراجع.
کما بينت النتائج بأن حساسية أصناف الزيتون کانت مختلفة إذ أن اعلي نسبة إصابة کانت على الصنف القيسي 18,59% ومن ثم الصنف الصوراني البلدي12,72% يليه صنف الدان 9,26% ثم صنف الخضيري8,80% واقل نسبة إصابة کانت على الصنف الفرنتويو الايطالي 6,67%.
https://jppp.journals.ekb.eg/article_86523_fd29dfde34f69082acf99f58e956cf9a.pdf
2011-08-01
765
772
10.21608/jppp.2011.86523
بسيلا الزيتونEuphyllura olivine Costa
الزيتون
سوريا
القنيطرة
محمد
السبيريج
1
مرکز بحوث القنيطرة
AUTHOR
لؤي
أصلان
2
قسم وقاية النبات _جامعة دمشق
AUTHOR
وجيه
قسي
3
قسم وقاية النبات _جامعة دمشق
AUTHOR