Figured I'd start a dedicated thread for this.
I've got a bunch of hops. 1x Brewer's Gold, 1x Nugget, 1x Saaz, 1x Tettnanger, 2x Perle, 2x Sorachi Ace, 2x Glacier, and maybe 15 or so wild hops (including at least one confirmed male).
I have spotted a lot of small spiders on the leaves, but I don't believe them to be pests. The male has a lot of earwigs under stunted yellowed shoots, not sure if it's a coincidence or not. I occasionally see grass hoppers around or on the plants. I saw one Question Mark Caterpillar a while back on one plant. Saw some kind of flea beetle today, not sure the exact species. Never noticed leaf hoppers, but will have to look better for them. Never noticed aphids, thrips or spider mites, but I did not use magnifying glasses nor spend a lot of time scouting.
Most common symptom seems to be chlorosis, with leaves turning basically white. Mostly new growth. Some necrosis on leaf tips on some plants. One or two plants have white stains on them, whether it's fungal or fertilizer salts, haven't determined yet. A number of plants are stunted, some are really short despite having a lot of leaves. Few plants are over 3 feet, only one of them reached the full height offered (probably around 15 feet?).
Those plants have not been treated with any pesticides. They were mostly given 20-20-20 miracle grow in Spring, then neglected for a while, and I've now started giving them ammonium sulfide (21-0-0). They are all new. 45°36′N, below-average temperatures, almost daily rain, heavy clay soils. Some are directly in the soil, some are in pots in the soil. Those in pots have a mix of the native clay and of a bit of black earth+perlite or pro mix (peat moss + perlite), depending on what I had on hand when I did it.
I've got a bunch of hops. 1x Brewer's Gold, 1x Nugget, 1x Saaz, 1x Tettnanger, 2x Perle, 2x Sorachi Ace, 2x Glacier, and maybe 15 or so wild hops (including at least one confirmed male).
I have spotted a lot of small spiders on the leaves, but I don't believe them to be pests. The male has a lot of earwigs under stunted yellowed shoots, not sure if it's a coincidence or not. I occasionally see grass hoppers around or on the plants. I saw one Question Mark Caterpillar a while back on one plant. Saw some kind of flea beetle today, not sure the exact species. Never noticed leaf hoppers, but will have to look better for them. Never noticed aphids, thrips or spider mites, but I did not use magnifying glasses nor spend a lot of time scouting.
Most common symptom seems to be chlorosis, with leaves turning basically white. Mostly new growth. Some necrosis on leaf tips on some plants. One or two plants have white stains on them, whether it's fungal or fertilizer salts, haven't determined yet. A number of plants are stunted, some are really short despite having a lot of leaves. Few plants are over 3 feet, only one of them reached the full height offered (probably around 15 feet?).
Those plants have not been treated with any pesticides. They were mostly given 20-20-20 miracle grow in Spring, then neglected for a while, and I've now started giving them ammonium sulfide (21-0-0). They are all new. 45°36′N, below-average temperatures, almost daily rain, heavy clay soils. Some are directly in the soil, some are in pots in the soil. Those in pots have a mix of the native clay and of a bit of black earth+perlite or pro mix (peat moss + perlite), depending on what I had on hand when I did it.