فعالية تقنية التغطية بالموسلين على مكافحة عثة الطلع arenipses sebella : hamps (lepidoptera : pyralidae)‎ وعثة الحميرة batrrachedra amydraula : meyr (lepidoptera: mumphidaon)‎ على النخيل phoenix dactylifera l. في الأردن

الملخص EN

A bagging technique experiment was conducted in two sites in the Jordan valley; Ghour kibed in the mid Ghour and Bakoura in Al-Showna Al-Shamalia.

The experiment started in March and ended at the fruits harvesting day in both seasons of 2002 and 2003.

The experiment was conducted by using CRBD with three blocks and five treatments.

The 1st treatment (Cascade treatment) was induced by spraying Cascade insecticide bimonthly in March, May, July and September.

The 2nd treatment (reiterated bagging with Cascade spraying) was applied by spraying Cascade at blooming stage and bagging the treated branches with muslin bags for two weeks.

Then bags were pulled out for 70 days, the same procedure was repeated in June for the same treatment.

The 3rd treatment (muslin treatment) was carried out by bagging the branches in March until harvesting date.

The 4th treatment (Cascade spraying and muslin bagging treatment) was applied by spraying branches with Cascade then bagging the treated ones to harvesting date.

The last and fifth treatment was a control with no application.

Results showed that the lowest infestation and intensity percentages of the fruits by the two lepidopterous insects; greater and lesser date moths were in the fourth treatment, then in the third one.

On the other hand, infestation and intensity percentages were not significantly different from control, first and the second treatments.

Fruits weight of the yield under the effect of these five treatments was highest with significant differences in the fourth one.

While the lowest yield weight was under the effect of the first treatment and the control then the second one.

On the other hand, the whole caging of date branches prevented infestation of the fruits by the most serious fruit pests which normally attack the fruits as storage insects, wasps, house flies, birds and rats.