In general you should avoid all carby/starchy/sugary food, but there's no fixed answer unfortunately! Everyone is different, both in the way they react to various carbohydrates, and the targets they choose to set themselves for their blood sugar levels.
The best thing to do if you haven't got one already is to ask your doctor for a meter, or if necessary buy one for yourself, and test your responses to various higher carbohydrate foods, then you can make an informed decision about what's OK or acceptable for you to eat.
The main Diabetes UK site will give you recommended glucose levels and initially you should aim for the T2 levels, and then preferably aim lower.
Our forum has a good selection of information on low carb diets, with recipes and suggestions on alternatives for high foods. The "What have you eaten today?" is also a very useful source of acceptable menus.
Hope this helps,
Robbity