How can I design a pest & disease control calender for a garden?

I am studying Horticulture, and while I do not expect you to do my assignment for me, I have been asked as part of the Pests & Diseases module to design a calender for pest control in a garden. I have never designed one before, so would appreciate any pointers or suggestions as to how to plan one one a Jan-Dec basis, or even just by seasons. Thanks.

 

My immediate thought is that a Spreadsheet would do the job, and that there are two factors to take into consideration.

A given crop will be prone to specific pests. That will either be based on a time-offset from sowing / planting (i.e. when the plant reaches a stage where it is susceptible to the peast / disease), or the pest/disease will have its own season.

The Cabbage White butterfly is around for a fairly easily defined period of time. I cover my Brassica beds to keep them out. However, seedlings grown in pots before the butterflies arrive are immune, those after that are not, and I don't net my hardening off area (so have to use daily vigilance instead).

Potatoe Blight depends on the weather - and Smiths Periods.

Red Spider needs warm weather, so its period is by the calendar too.

Slugs will attack seedlings, but established plants are less likely to succum.

I now realise I've assumed Vegetables, and maybe that isn't your brief? Ho! Hum!

 

What I would find useful is a table with the months along the top and the pests diseases listed down the side along with a list of the plants most susceptible - then green orange and red shading to say what time of year to be most vigilant. Specific weather conditions could be hi lighted along the time line