فعالية قشور سنابل القمح و مستخلصاتها في حماية الحبوب المخزونة من الإصابة بخفساء الخابرا

الملخص EN

The efficacy of wheat spike husks and its extracts in protecting stored wheat seeds from Trogoderma granariumin infestation were determined.

The results of measuring the effect of husks presence indicated that removal of the increase the infested seeds up to 26% in comparison with 15% when the present.It was obvious that storage of seeds as spikes, protected from Khapra beetle infestation.

The infestation percentage was not more then 7% and continued at this low level for 13 weeks, then increased to its highest levels.

Testing the efficacy of the seed extracts on Khapra beetle infestation, showed that treatment of wheat seeds with 40% water extract, reduced the damage from 35%to 26%.

It was found that seed damage percentage increased gradually and become significant after four month .The results obtained from treatment of wheat seeds with methanolic extract of spike, depicted significant reduction in percentage of seed damage in comparison with water extract treatment .

The damage percentage reduces to 1% at concentration of 18% compared with 40% at the control, and such protection continued to more than 10 th month.

There were no significant differences between wheat varieties used.