You are correct. Every greenhouse of course has risk associated with it. However, it is less than in the field if managed properly. In general, thrips are a minor problem on wine and raisin grapes in California. From what I have read they are more of an issue for table grapes. See ‘management’ section at this link. http://ipm.ucanr.edu/PMG/r302300911.html#:~:text=Grape%20thr....
Avoid samples with signs of mosaic virus and beware if somebody in your family is allergic to wasps. You will attract pollinators so is unavoidable having some.
You’re welcome.
Thrips is just an example I used because it tends to be the most common.
I still think you should rephrase your statement because saying there are ‘No’ pressures is wishful thinking and unrealistic in any growing environment.
You are correct. Every greenhouse of course has risk associated with it. However, it is less than in the field if managed properly. In general, thrips are a minor problem on wine and raisin grapes in California. From what I have read they are more of an issue for table grapes. See ‘management’ section at this link. http://ipm.ucanr.edu/PMG/r302300911.html#:~:text=Grape%20thr....
Thanks for taking the time to reach out!