Knotweed - treated and insured - do i need to declare on TA-6?

Tiglet2

Also on the TA6 form on page 2 - Instructions to the Seller:

"It is very important that your answers are accurate. If you give incorrect or incomplete information to the buyer, the buyer may make a claim for compensation from you or refuse to complete the purchase.

You should answer the questions based upon information known to you. You are not expected to have expert knowledge of legal or technical matters, or matters that occurred prior to your ownership of the property.

Please give your solicitor any letters, agreements or other papers which help answer the questions. If you are aware of any which you are not supplying with the answers, tell your solicitor. If you do not have any documentation you may need to obtain copies at your own expense. Also pass to your solicitor any notices you have received concerning the property and any which arrive at any time before completion of the sale."