Tom Heath & Daughter Chelsea Heath


Heath's Greenhouse & Nursery Featured in

Old Farmer's Almanac 

Gardener's Companion

1996 Edition

Beneficial Nematodes Packed for sale

Japanese Beetles & Damaged leaves

Live Japanese Beetles on a sponge, for sale

Mailing Address:

750 Route 18 Sugar Hill, New Hampshire 

(603) 823-8500

Located on Route 18, Franconia, NH

Just off Interstate I93

Exit 38N Franconia, NH and 39S Sugar Hill, NH off Interstate 93


All Natural Pest Management
Pest Management
When our greenhouse was established in 1989 we developed all natural approaches and solutions to pest management that were well ahead of their time. Our expertise in this area is extensive and from experience we know what works and what doesn't in our area. We will discuss some of the pest control processes we use with lady bugs, praying mantis, tricagrammas – parasitic wasps, beneficial nematodes; all the “good bugs” known as beneficial insects.

The Good Bugs
Do you have a problem with Japanese Beetles, Potato Beetles, Aphids, White Fly, Cabbage Worms, Cucumber & Squash Beetles, Caterpillars (including Tent Caterpillars), House Flies, Cluster Flies? Heath’s is here to help you combat all of your garden pests. Some of the common Beneficial’s used in this area: Beneficial Nematodes, Tricogramma (Parasitic Wasps) and Lady Bugs.

​Please call us or bring in your sealed soil and plant damaged leaves  in a plastic bag for evaluation. We sell 38+ different kinds of beneficial insects. We carry some beneficial insects in stock during the growing season, such as beneficial nematodes and will take special orders on a weekly basis.  Tom Heath has been studying Beneficial’s for more than 25 years and his son Jeremy Heath has his PHD in Entomology.

All Natural is a way of life. Here are some of the steps to a healthy garden.

  • Developing compost
  • Building sustainable soil
  • Rotating crops
  • Companion planting
  • Collecting seed
  • Balance, Eco System

Having problems with Powdery Mildew and fungus? Natural sprays work as a preventative and treatment. Such as Baking Soda Spray. Also add Good Bacteria to your soil to combat some fungal problems.

Beneficial Nematodes
Heath’s Greenhouse & Nursery has the right Beneficial Nematodes for this climate and region. We will guide you through the process of selection and application of your Beneficial Nematodes. We have been using Beneficial Nematodes for over 25 years.

Beneficial Nematodes are live microscopic organisms (non-segmented round worms) that occur naturally in soil throughout the world. They are parasitic to insect pests that typically have a developing (larval or pupal) stage of life in the soil; however, they have been known to also parasitize above ground stages of adults, nymphs and larvae.

​How Do Nematodes Work? After application, the nematodes immediately get to work. Upon finding a host, they enter it through various body openings or directly through the body wall. Once inside, the nematode releases a toxic bacterium which kills the host larva within 24 – 48 hours. The bacteria creates a food source and a hospitable environment for the nematodes to reproduce. As the food resources within the dead pest become scarce, the nematodes exit and immediately begin searching for a new host elsewhere.

For Japanese Beetles – We recommend an application in May, June and August to control these devastatingly hungry little critters.

Beneficial nematodes seek out and kill over 200 species of pest insects in the soil and will have no detrimental affect on species such as ladybugs, earth worms and other helpful beneficial insects. Beneficial nematodes infest grub and other pest insects that are known to destroy lawns and plants . Tom Heath will give you specific information all how to apply. Questions? Call (603) 823 8500

​NOTE: We have found that Milky spore disease (Bacillus popillae) does not winter over well in this location.