التركيب الكيميائي و التضاد الفطري للمستخلص الميثانولي لأوراق نبات اللانتانا (Lantana camera L)‎ تجاه بعض الفطريات

الملخص EN

This study was conducted in 2017-2018 at the Department of Plant Protection in the Faculty of Agriculture, Damascus University, Syria.

The methanol -extract of lantana leaf (Lantana camera L.) was analyzed by GC-MS Sixteen different components were identified constituting approximately, 75.65% of the extract.

The terpenoids components were Beta Caryophyllene (2.22%), Neophytadiene (6.21%) and Phytol (6.21%) and .(many fatty acids as Palmitic acid (7.72% The antifungal activity of methanol extract of L.

camera was evaluated against five plants pathogenic fungi : Aspergillus niger, Penicillium expansum, P.

digitatum.

Botrytis cinerea, and Fusarium oxysporum by using the poisoned food at various concentrations.

The results showed that the antifungal activity of methanol extract was weak at 100 ppm, but at 2500 ppm strongly inhibited growth of all five fungi.

In addition, the results indicated that the antifungal activity of methanol extract against the tested fungi increased parallel with raising the concentrations of the extract.

A.

niger and P.

digitatum at concentration of 1500 ppm, and B.

cinerea at concentration 2000 ppm and F.

oxysporum at .concentration 2000 ppm, did not show any mycelium growth The values of EC50 for the extract were : 157.83; 363.459; 512.6; 821.091; and 1346.97 ppm for P.

digitatum, A.

nigra, B.

cinerea, F.

oxysporum and P.

expansum, respectively.

These results showed that the extract of L.

camera has the potential to be used in the management of plant disease as a .safe biopesticide.