Table 1

Effect of various fungicides and combinations against leaf spot symptoms on southern magnolia.

Chemical & rate per acreSymptoms
Angular spotMarginal scorch
Nova 40W 12 oz + Kocide 101 77W10lb + Red Panther surf. 2.0 pt1.1zay1.2 ab
Daconil 2787 4.17 F 6 pt + Red Panther surf. 2.0 pt1.2 a1.0a
Orbit 3.6 EC 8 oz + Red Panther surf. 2.0 pt1.2 a1.0 a
Benlate50W1.0lb + Red Panther surf. 2.0 pt1.2 a1.0 a
Benlate 50W .5 Ib + Red Panther surf. 2.0 pt1.2 a1.0 ab
Orbit 3.6 EC 8 oz + Kocide101 77W10lb + Red Panther surf. 2.0 pt1.2 a1.0 ab
Orbit 3.6 EC 4 oz + Red Panther surf. 2.0 pt1.3 a1.0 a
Daconil 2787 4.17 F 36 pt+ Kocide101 77W10lb + Red Panther surf. 2.0 pt1.3 a2.0 d
Orbit 3.6 EC 4 oz + Kocide101 77W10lb + Red Panther surf. 2.0 pt1.3 a1.7 cd
Daconil 2787 4.17 F 3 pt + Red Panther surf. 2.0 pt1.3 a1.0a
Benlate 50W 1 lb + Kocide 101 77W10lb + Red Panther surf. 2.0 pt1.3 a1.5 bc
aconil 2787 4.17 F 3 pt + Kocide 101 77W10 lb + Red Panther surf. 2.0 pt1.4 a1.1 ab
Nova 40 W 6 oz + Kocide 101 77W10lb + Red Panther surf. 2.0 pt1.5 ab1.1 a
Benlate 50W .5 lb + Kocide 101 77W10lb + Red Panther surf. 2.0 pt1.6ab1.3 ab
Nova40W12oz + Red Panther surf. 2.0 pt1.6 ab1.0a
Nova 40 W 6 oz + Red Panther surf. 2.0 pt1.8ab1.0 a
Kocide 101 77W10lb2.1 b1.0 a
Red Panther surf. 2.0 pt2.7 c1.1 ab
Control (unsprayed)2.8 c1.4 abc

  • ↵z 1 to 8 rating, where 1 = 0% leaf surface affected, 2 = trace-6%, 6 = 6%-25%, 4 = 25%-50%, 5 = 50%-75%, 6 = 75%-94%, 7 = 94%-99%, 8 = 100%. Symptoms rated are described in text.

  • ↵y Mean separation in columns by Duncan’s Multiple Range Test, 5% level.