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تحميل الدليل التدريبي

أسئلة شائعة


Publications and Abstracts:

1-Alaa Kamel ,Saleh Al-Dosary, Samy Ibrahim, and Mohammed Asif Ahmed. Degradation of the acaricides abamectin, flufenoxuron and amitraz on Saudi Arabian dates (2007).


Degradation of the acaricides abamectin, flufenoxuron and amitraz on date palms, Phoenix dactylefera var. Nabout Seif, grown in Saudi Arabia was studied during the post-harvest interval (PHI) under the local weather and soil conditions. The initial deposit of abamectin residues on dates was 0.09 mg/kg, which declined to 0.03 (66%) and 0.02 mg/kg (88%) after 7 and 14 days of spraying, respectively (PHI = 10 days, MRL = 0.03 mg/kg). The initial deposit of flufenoxuron was 0.68 mg/kg and declined to 0.25 (68%), 0.07 (90%) and 0.03 mg/kg (96%) after 16, 52 and 60 days, respectively (PHI = 50 days, MRL = 0.1 mg/kg). Finally, the initial deposit of amitraz

was 0.34 mg/kg which declined to 0.02 mg/kg (95%) and was not detected (100%) after 21 and 30 days, respectively (PHI = 28 days, MRL = 0.01 mg/kg). The acceptable daily intake (ADI) for fruits and vegetables set by FAO/WHO for the three acaricides tested was based on regular and average consumption of fruit, however, in Saudi Arabia, and other neighboring countries, natives consume more date (more than 10 times) than an average person living outside this region. Such high date consumption could lead to a higher risk of exposure to pesticides, especially in children and other vulnerable individuals.

Chemistry 100 (2007) 1590–1593.

2- Alhussein M. Assiry and Saleh Aldosari. Effect of Conventional and electrical thermal stresses on the destruction kinetics of silvanidae insects inside the fruits of some date varieties.  Alex. Sci. Exch., 48 (2): 69-80.


The goal of this research was to investigate indirect exposure through immersing three verities of dates fruits (Sefri, Khudari and Seri) in boiling solution. The heating was introduced by conventional Heating and by using electrical conductive method through salt solution to kill some stages of Oryzaephilus surinamensis: Silvanidae insects. The results indicate that the destruction rate order of the adult stage and larva stage of the insect was zero order in both direct and indirect heating regardless of the heating mechanism wither it was a conventional or an electrical. The adult stage was more resistance than the larva stage and both stages were sensitive to temperature changes. In addition, the destruction of the adults insures the destruction of all other stages of the insect. There was no significant change between the destruction rate when using conventional heating or electrical heating in case of Sefri and Khudari.Applied mathematical models were developed to describe the electrical conductivity of immersed system of dates in sodium chloride solution and for the heat penetration into the date fruits as well.


2- Al-Dosari, S. A. (2002). Pesticides and handling at farm level in Al-Kharj province. Alex. Agric. Res. J., 47 (2): 47 – 55.


Forty farms represent different levels in Al-Kharj Province were chosen to carryout this research. The study included  many points related to the use and handling of pesticides in these farms. T he study showed that 57.5 % of these farms have ignorant workers ( do not read or write ), and 80 % of these farms  depend on experience in their agricultral practices. Organophophate, pyrethroids, carbamates, and biopesticides were used in 38%, 32 %, 15 %, and 12 % of these farms respectively. 75 % of the farms had storage rooms, while only 12.5 % of the farms had coolings and heating system in the storage. Workers using their hands in mixing pesticides were found in 2.5 % of these farms. Medical check for workers is carriedout in 5 % of the farms. Burning was used in 52.5 % of the farms to dispose pesticides.

 - Al-Dosari, S.A. (2001). Efficacy of certain insecticides for the control of cotton bollworm  (Helicovera armigera  Hb) on tomatoes in Al-Kharj province, Saudi Arabia. Saudi. J. Bio., Vol. 8, No.1.


The efficacy of 5 insecticides for the Notuidae; Lepidoptera, on tomatoes in traditional farm at Al-Kharj province was investigated during the agricultural season of 1419-1420 H.  Tested insecticides were Cypermethrin 10 % ( 1 L / Ha. ), Beta-Cyfluthrin 2.5 % EC ( 0.5 L / Ha ), Fention 50 % EC ( 1.25 L / Ha ), Propoxur 20 % EC ( 250 ml. / Ha ), and Halt 50 % ( 1 Kg / Ha ).  Differences in mean infestation ( no of infested fruits ) , % infestation and % reduction of infestation were mostly significant between check and insecticide treated plots. Cypermethrin and Beta-Cyfluthrin gave the most effective control ( 52.9-66.7 % and 47.2-74.2 % reduction of infestation, respectively ).  Fention was relatively less effective and reduced infestation by 39.4-70.6 %, followed by Propoxur  which reduced infestation by 30.3-48.4 %.  The bacterial insecticide Halt was the least effective as it reduced infestation by only 11.1-29.0 %. Efficacy gained from chemically different groups of insecticides seemed to be less than expected possible due to the development of cross resistance among the pest’s population as a result of miss-use of insecticides at the traditional farms.


- Al-Dosari, S.A. (2000). Evaluation of some insecticides to control the potato tuberworms Phathorimaea operculella (Zeller) on tomato crop in Al-Kharj province. Alex. Sci. Exch., 3 (21): 157-166.


The purpose of present study is to evaluate and to know the efficiency of some insecticides used to control the potato tuberworms Phathorimaea operculella (Zeller), and to know the effect of infestation on the yield of tomato, and to record the effect of the mis-use of insecticides in traditional farms. The best insecticide tested was cypermethrin , which reduced infestation by 85.5%, then Beta-cyfluthrin (67.3%). The results indicate the decrease in the efficiency of these insecticides. There was a similarity of the results of most of these insecticides , except for  cypermethrin and Beta-cyfluthrin. Also, the results indicate the presence of resistance among the population of this insect as a result of the mis-use of insecticides in some traditional farms.   

- Al-Dosari, S. A.; Y. Sultan; F. Al-Yahya and S. Al-Suhaibani (2000).  Olive pests.  Extension Bulletin No. 86.


- Al-Yahya, F. A.; A. M. Al-Suhaibani; S. A. Al-Dosari; S. El-Husseini and H. M. Al-Dahafer (1999). Integrated pest management of Date-Palm pests in Saudi Arabia. Alex. Sci. Exch., 3 (20): 205-233.


 - Al-Dosari, S.A. and W. S. Cranshaw. (1999). Onion Thrips (Thysanoptera: Thripidae) Response to Regular Applications of Pyrethroides in Field Populations. J. King Saud Univ. 2, Agric. Sci., 14

 2- Abstract:

 Al-Dosari, A. saleh, A. M. Al-Suhaibani and A. G. Ali.(2002) Susceptibility of some Dry Date Palm Varieties to Infestation by Oryzaephilus surinamensis (L) (Coleoptera: Silvanidare) in Relation to their Chemical Composition. Assiut Journal of Agricultural Sciences. Assiut University (Accepted for publication on 4 /5/ 2002.


 6- Al-Dosari, S.A (2000). “Evaluation of some Insecticides to Control the Potato Tuberworms Phthorimaea operculella ( Zeller ) on Tomato Crop in Al-Kharhj Province”, Alex. Sci. Exch., 3 (21), 157-166.



8- Al-Dosari, S.A. W.S. Cranshaw and F.C. Schweissing, (1996). “ Effects on Control of Onion Thrips from Co-Application of Onion Pesticides, J. Southwestern Entomologist, 21 (10), 49- 54.



9- Al-Dosari, S.A.; T.F. Watson; S. Sivasupramanian ans A.A. Osman, (1996). “ Susceptibility of Field Population of Beet Armyworm ( Lepidoptera: Noctudae ) to Cyfluthrin, Methomyl and Profenfos and Selection for Resistance to Cyfluthrin. ”, J. Econ. Entomol., 89 (6), 1359-1363.




10- Al-Dosari, S.A. and W.S. Cranshaw (1999). “ Onion Thrips (Thysanoptera: Thripidae ), Response to Regular Applications of Pyrethroids in Field Populations “, J. King Saud Univ., 2, Agric. Sci. 14 ( 2 ): 91-10


14- Cranshaw, S. C and S. Al-Dosari. Control of onion thrips in onions, comparison of registered materials. 1992. Arthropod Management Tests. Vol. 20 . 43E.

 15- Cranshaw, S. C and S. Al-Dosari. Evaluation of Adjuvants on control of onion thrips with cypermethrin. 1992. Arthropod Management Tests. Vol. 20 . 44E.

 16- Cranshaw, S. C and S. Al-Dosari .Control of onion thrips in onions, Adjuvant trial, Greeley, Co. 1992. Arthropod Management Tests. Vol. 20 . 45E.

 17- Cranshaw, S. C and S. Al-Dosari .Control of onion thrips in onions, Greeley, CO. 1992. Arthropod Management Tests. Vol. 20 . 46E.

 18- Cranshaw, S. C and S. Al-Dosari .Control of onion thrips, Ft. Collins, CO. 1996. Arthropod Management Tests. Vol. 21 . 60E.

 19- Cranshaw, S. C and S. Al-Dosari .Control of onion thrips, Ft. Collins, CO. 1996. Arthropod Management Tests. Vol. 21 . 61E.



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