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One of the first little "trials" upon getting the Adjuvant samples earlier this summer was to spray a grape arbor riddled with Japanese beetles. They had pretty well eaten the leaves on one profuse part of one vine. I hit it three times over a week. The beetles left and the vine continued sending out new runners with new leaves.

The grapes had already begun forming by that time, so that part of the growth phase was over. But apparently the new leaf growth provided enough energy to fill and mature the grapes. Last night I filled a 5-gal. bucket and a small basket with the grapes, mostly from one vine.

Brix readings on juice squeezed from large, mature grapes: 14 to 15. Not exceptional, but very adequate for a table grape.

Here's how the vine looked August 2, loaded with Japanese beetles