need help to identify hop disease

[pixelhussar]

Hey guys,


I digged some young hop plants one and a half month ago. They grow nicely, some of them are more than a meter high by now.

Unfortunately they have been attacked by something. Could you please help me to identify this?


Thanks!

 

[pixelhussar]

some more images

 

[Maplehead74]

The holes are from a insect not disease . Some insect dust ( Carbaryl aka Sevin) or organic insecticide will fix that. Make sure to treat the under side of the leaves as well as the top.

The yellowing is a nutrient issue most likely. Get a soil if you really want to fix it. Or , the lazy way that will work fine is a balanced fertilizer ( 10-10-10)

The other thing I noticed was the mulch . I would pull it back from around the stems a little. Most plants don't like being heavily mulched around the stem. Many plants will die from that alone!

Hopefully, this advice will get you on track for some great hops!

 

[forstmeister]

Yup, insect feeding on the leaves. May or may not require treatment. I also noticed the leaves look a little chlorotic as well. I agree a soil test would be a good idea but probably should have been done before now.

Typically you don't want to mulch heavily as the mulch (especially if you use wood chips) can form a "crust" and actually repel water from the soil. Straw makes a good garden mulch actually.