EVALUATION OF TOXIC EFFECT OF EXTRACTED PLANT PHENOL OF LAWSONIA INERMIS AND PUNICA GRANATUM AND ITS COPOLYMER IN TETRANYCHUS URTICAE KOCH( ACARI : TETRANYCHIDAE)

Phenols were extracted from both leaves of Henna Lawsonia inermis and fruit husk of pomegranate Punica granatum and it was used in laboratory bioassays to assess their effectiveness to control the two spotted spider mite Tetranychus urticae Koch (Acari : Tetranychidae). Pomegranate phenol was more effective ( mortality rates 60.55, 71.10 and 56.66%) compared with Henna Phenol (mortality rates , 58.33, 59.44 and 46.66%) at concentration 1.0% test with two spotted mite adult , nymph and egg respectively. The most promising phenol (Pomegranate) was prepared as Phenol- Ureaformaldehyde Copolymer. The copolymer appeared high toxic effect ,caused mortality of T.urticae adult, reached 61.66 % at the more effective concentration of 1.0% after 24h of spraying application, the mortality enhance with increase time of treatment , to give rate 75% after 72h of application. The mortality of nymph had increased, it ranged from 50 to 88.33% at concentration mentioned before. Egg mortality rates were reached 66.66% in copolymer treatment at concentration 1.0% after 72h of application. The toxic effect found in this study could be attributed to phenol. Polymerization method offers the possibility of use phenol in controlled drug release systems.