الفهرس 
The causal organismsOnly 14 pages are availabe for public view
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Abstract
Pestalotiopsis mangiferae was highly isolated from Behera and
Menoufia samples and didn’t found in Aswan ones. However
Alternaria alternata fungus was highly present at Behera, Menoufia
and sharqia governorates but not at Aswan governorate. Fusarium sp.
was highly isolated from Behera and Menoufia samples and didn’t
found in Aswan ones. Botryodiplodia theobromae was isolated from
the samples of all examined governorates except Sharqia ones.
2. Fruits of all tested mango cultivar (Fajrkelan, kent, keiit, and naomy)
were susceptible to the infection with the three pathogens under
study, when artificially inoculated with each of them.
3. No significant differences were observed between the cultivars
toward Fusarium sp. and/or Alternaria alternata isolates, while kent
cultivar was less susceptible to Pestalotiopsis mangiferae. compared
to the other cultivars.
4. Under laboratory condition; clove plant extracts suppressed the
growth of Pestalotiopsis mangiferae at all tested concentration (10, 15
and 20%). The extracts of garlic and galls had the second and third
ranks; in this respect.
5. All tested plant oils reduced the growth of Pestalotiopsis mangiferae
significantly in comparison with control. Mint oil followed by
camphor on had the best efficiency in reducing the fungal growth.
6. The tested fungicides showed superior effect in reducing the growth
of and Koside 2000 were applied.
7. All used plant extracts reduced linear growth of Alternaria alternata
fungus; significantly; in comparison with control. The best efficiency
was obtained when either clove or garlic plant extracts were used.
8. Clove oil followed by mint oil were the best tested ones in reducing
the growth of Alternaria alternata isolate. Clove oil suppressed the
fungal growth at all tested concentrations (5, 10 and 15%).
9. Bellis fungicide followed by Polyrame D.F were the best used
fungicides in reducing the growth of Alternaria alternata.
10. Clove and oleander plant extracts gave the best results in reducing
the growth of Fusarium sp. isolate. Both of them suppressed the
fungal growth at all tested concentrations (10, 15 and 20%) and all
investigation times.
11. Mint and camphor oils showed the best efficiency in reducing the
growth of Fusarium sp. fungus. In this request, clove oil came in the
second rank.
12. Koside 2000 followed by Bellis were the best tested fungicides for
reducing the growth of Fusarium sp. isolate. In meantime, all tested
fungicides at all used concentrations showed significant reduction of
the fungal growth, compared to control.
Under field condition application of either galls and/or clove oil and
clove extracts (5%) gave the best results of number of emerged
inflorescences, fruit setting and the number of remained fruits after
June drop. the average number of healthy fruit per tree recorded 35
and 34, respectively; in response to the application of galls and clove
plant extracts. Such results are much better than those obtained with
the chemical fungicide application.
14. Artificially inoculated mango fruit which treated with 10% of either
clove, galls, garlic plant extracts and their mixture and/or 5% of
either garlic oil or clove oil resulted significant reduction of the
severity of infection with Pestalotiopsis mangiferae in comparison
with the untreated fruit. Shelf life of mango fruit; both artificially
inoculated with Pestalotiopsis mangiferae or not; was increased in
response to the application of either plant extracts and/or plant oil;
significantly.
15. Application of garlic oil and/or garlic plant extracts minimized the
loss of weight of mango fruit; both inoculated with Pestalotiopsis
mangiferae or not; up to 12 days of inoculation.