1. Horticulture Undercover: Innovations in Greenhouse Industry

2. 4.8%

4. Harvested area of greenhouse vegetables by province - percent share in 2015 (Statistics Canada)

5. Harvested area of greenhouse vegetables by commodity by percent share in 2015 (Statistics Canada)

6. Robotic carts carrying picked produce

20. Leaves in this Ontario greenhouse are left on the ground to allow beneficial insects to breed.

21. Stems at end of crop

24. Juvenile lacewing eating aphid

34. By NASA Marshall Space Flight Center [Public domain], via Wikimedia Commons

39. Photo taken by Christopher Porter
Used under the creative commons license.

40. Photo by Tesco PLC used under creative commons license.