What am I doing wrong??
In the spring of 2008 I used Scott's pre-emergent for the last tim. During 2008 I stuck with organic fertilizers, including corn meal, compost tea, 3 applications of Milky Spores(spring, summer,fall) watered deeply and infrequently. This spring I applied 20LBS/1000 CGM right when the Forsythia were blooming, followed by CM July and Sep. My grass was doing great until June/July when I started to notice yellow patches and tons of weeds. Desparate, I sent soil for testing which was reported as follows:
soil pH 5.2
buffer pH 6.3
Nitrogen 13 ppm
P 12,K 131, Ca 616, Mg 131
After I had received above results in late September I put appx 25/1000 of Lime, reseeded it, and applied my 3rd round of the year Milky Spores. I saw multiple grubs (please see the attached pic) so I ordered beneficial nematodes. I applied 6 million of them on my 1/2 acre lot. Today, approx 2 wks after application, I took a picture of the grubs...they are still quite happy and are in groups of apprx 10-15/sq ft.
Is this a lost cause? I'd like to stick to organic solutions, if possible. Please help! I don't know what to do next!