
When summer hits its stride, so do the garden pests. I’ve had a few grand battles with some particularly pesky pests in the past. However, I wasn’t always the most proactive player in the pest management game. I really only took notice after these “rat bastards” – as I so kindly refer to them – did some serious damage to one plant or another. I recently had a chance to work with the Integrated Pest Management (IPM) division at Longwood and quickly became hyper-aware of all insect activity thanks to daily scouting trips around the gardens and routine research on the topic.

Lo and behold, once my eyes were opened, my garden quickly reveled myriad insects, many of which are good guys! I never knew I had so many beneficial insects fighting my war against pests for me. As I noted earlier, the lady bugs were feasting on black aphids in my flower beds in late May and early June. And the bees of course have been doing their very important business of pollinating since the first colorful flower emerged in spring.

I couldn’t really capture the itty bitty parasitic wasps laying their eggs inside the eggs of an asparagus beetle’s, but trust me, that was super cool! I actually saved the leaf the eggs were on in a small vile and hatched them out in safety. I released the new generation on my stand of mustards and beans as these little wasps reportedly do big time damage to Mexican bean beetle, my arch nemesis.

But the real hero in my garden this year is without a doubt the army of assassin bugs (a.k.a. wheel bugs). Early this spring I noticed a clutch of eggs on one of my wooden poles that I was tempted to squash since I didn’t know what they were. Boy, am I glad I didn’t! Out hatched hundreds of bright red and black assassin bugs, all of which quickly disappeared. I was forlorn as I knew they are a great predatory insect. Well, thankfully they just were hiding for a bit while they went through a couple nymphal stages (I’ve found lots of empty skins they shed on the underside of many of my ornamental plants).

About two weeks ago, they all suddenly re-emerged on my Echniops, at least triple the size they had been when they hatched. I immediately offered them a re-location package they couldn’t refused and carefully (they do bite!) dumped at least 20 on my ground cherries, eggplants, and tomatillos in the vegetable garden. These plants were plagued with flea beetle and Colorado potato beetle. I had my doubts that they’d do much good… assassin bugs are general predators so it wasn’t clear from my research if they’d be all that committed to cleaning up one pest in particular. Well, folks, the proof is in the photo! The Colorado potato beetle grubs were a hot ticket item on the menu and I am now grub free! I also saw them piercing the flea beetle with their tenacious mouthparts, but when they weren’t encumbered by the weight of a big ol’ grub, the assassin bugs moved too quickly to take a clear photo of the feasting. The flea beetle population has plummeted. I can’t believe I’m saying this…but, I hope the Mexican bean beetle and harlequin bugs get here soon so my brigade of good fellas has something new to eat!



















