Document Type : Original Article
Authors
1
Fruit Diseases Res. Dept., Plant Pathol. Res. Inst., Agric. Res. Cent., 9 Gamaa Street, Egypt
2
Seed Pathol. Res. Dept., Plant Pathol. Res. Inst., Agric. Res. Cent., Giza 58312, Egypt. Date Palm Res. Cent. Ex., King Faisal Univ., Al-Ahsa 31982, Saudi Arabia
3
Frontier Agric., SOYL Precision Crop Prod. Div., Newbury, United Kingdom. Date Palm Res. Cent. Ex., King Faisal Univ., Al-Ahsa 31982, Saudi Arabia
4
Tropical Fruits Res. Dept., Hort. Res. Inst., Agric. Res. Cen
5
Cent. Agric. Pest. Lab., ARC, Dokki, Giza, Egypt
6
Integrated Control Res. Dept., Plant Pathol. Res. Inst., Agric. Res. Cent., 9 Gamaa Street, Giza-12619, Egypt
Abstract
An integrated control program for peaches and apples powdery mildew was
evaluatedboth Burg Al-Arab and South of Tahreer regions. In the first season, the efficiency of the
program’s fungicides were tested in terms of the number of sprays and the most appropriate time to
repeat the sprays, as well as the best effective fungicides. It was found that they all treatments were
effective in controlling the disease. The best time to repeat spraying was from seven up to 10 days. In
the second season, the chosen fungicides were evaluated compared with the farm fungicides
individually, and the general control (sprayed with water only). On the other hand, evaluation of
essential oils and fertilizers were done individually. The results showed the efficiency of systemic
fungicide (Scor), copper and sulfur (preventive fungicides) and cinnamon oil and chitosan as Eco -
friendly alternatives in controlling the disease. In the third season all tested fungicides used at the
dormancy stage of trees at first January before buds swelling , data showed that all fungicides indicate
high effect in decreasing the disease comparing with control at the in first of May compared to the
control (100% disease severity). The tested fungicides gave 2.9% and 3.3% in case of peach at Borg
Al-Arab and South of Tahreer respectively and 6%, 8.6% in apple at Borg Al-Arab and South of
Tahreer respectively. At the fourth season all treatments combined in the integrated program were
done at beginning spray (at 8 January while dormancy stage of trees) on apple. The tested program
showed significant reduction on peach and apple powdery mildew compared to the control (100%
disease severity) at the end of tested program comparing with the farm of tested program in case of
peach and apple at Borg Al-Arab and South of Tahreer respectively, in May before harvest. In the fifth
season the same tested program applied at t at the first of November during the winter tree service.
The tested program was effective in control peach and apple powdery disease in locations.
Keywords
Main Subjects
)
View on SCiNiTO