تأثير صنف الطماطة و بعض المعاملات الكيميائية و الوقت من الموسم في متوسط نسبة إصابة الأوراق بديدان الثمار

Abstract EN

The results of the recent study showed no signification difference in general mean of leaf attack by T.

absoluta according to kind of chemical treatment in comparison with control , although that the treated tomatoes varieties by leaf fertilizer exhibit the highest general mean leaf attack reached 35.49% and the highest leaf attack was found on Speedy variety in comparison with 33.31 and 30.99 % for Rocky and G.S variety respectively.

The highest general mean leaf attack by T.

absoluta was registered during September and reached 60.3 %.

For the tomato worm H.

armigera the results showed no significant difference also , in general mean of leaf attack between tomato varieties in treatments and control , and the highest general mean of attack reached 88.92 % in varieties treated by growth regulator in comparison with control 80.33 %.

The G.S.

variety was most preferred and got the highest attack found in September and reached 90.14 %.

The percentage of leaf attack by both worms kinds was decreased.