I've got a garden vineyard with 8 vines (4 Frontenac and 4 Frontenac Gris). I'm wondering if anyone has any ideas on soil management under the vines? I've been mulching but recently learned (after battling a few this spring) that Grape Flea larvae like to winter in decayed wood pores. I also think that mulch might be a haven for black rot spores but not sure about that. My wife was doing some research on companion plants and found that chives are a good companion for grapes along with oregano and basil. My two questions with that are first will they steal nutrients from the soil and second will they impart any flavors into the grapes. Any other suggestions are welcome on ground cover to control weeds and bugs (Japanese beetles Grape Fleas etc.).