Abstract
The results of treating the last nymphal instar of periplaneta americana by sub-lethal dose (o.1 ml of 0.2%) of Azadirachtin . Lufenuron and Methoxyfenozide . on some physical features of adults wings produced from treated nymphs. The results revealed asignificant variation in wings cuticle resistance to electrical current between treatment and control. The control treatment showed a highest degree of electrical resistance in front and hind wings of right and left direction and reached 157.89 . 170.89 . 134.33 . and 170.89 omh/m respectively. The electrical resistance of wings cuticle in treatments were varied according to the kinds of insect growth in hibitors . The same treatment also exhibited a varied degree of wings absovption to ultra violet and infrared rays at different wave length according to the kind of IGR and wave length in comparison with control treatment . these results confirmed that IGR changed the texture and components of the treated wings with IGR.
Highlights
The technology and scientific progress is considered one of the main reasons for economic, social and economic development in various countries in the world including Iraq which face great challenges today in all the fields of life such as the agricultural field .Iraq seeks to improve agricultural sector by using a scientific method able to apply the agricultural inventions (12)
The success of the change that agriculture extension targets depends on the communication process that is considered the start point of the successful extension work specially and develop the rural society in general .Through this communication the information, knowledge, thoughts and technology are transported among the targeted people in order to achieve the objectives of agricultural extension work (7).the communication became one of the most important elements of the extension management success for its contribution in learning the most important problems that face agricultural extension work as well as its contribution in developing social relations among the workers in agricultural extension and the targeted people .it organizes the work process and achieve activity for the functions of extension management (10)
1-The role of modern communication suggested items is higher than the hypothetic technology in improving agricultural mean degree which is 3 degrees as explained extension work in the following table
Summary
The technology and scientific progress is considered one of the main reasons for economic , social and economic development in various countries in the world including Iraq which face great challenges today in all the fields of life such as the agricultural field .Iraq seeks to improve agricultural sector by using a scientific method able to apply the agricultural inventions (12). The application of agricultural inventions requires the existence of the bodies that contribute in achieving development and advances in Iraqi countryside through spreading the new agricultural thoughts and practices , transport the researches results to the farmers in applicable way and implement them .Agricultural extension system is considered one of these bodies .It is the instrument that the interested workers in agriculture depends to develop it (5) through teaching and training the farmers on using the agricultural inventions to change their knowledge , trends and their way of thinking by using various instruction methods that make them able to help themselves and convince them to improve agricultural work , benefit from scientific advances to increase agricultural incomes , improve economic and social level of countryside people and improve their living (8). Research Objectives: In light of the above-mentioned research problem, the main objective of the study is the role of modern communication technologies in improving agricultural extension work in the governorates of the central governorates of description of modern communication
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