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Universal operating position
HI98100 Checker Plus pH Tester
perfectly balanced construction and an ultra-lightweight
Centurion Pro 1
but gives your plants a great early start
Aphid Parasite, Aphidius colemani - 5,000 - GN-AC50 hydro-x Universal operating positionStop aphid infestations early with these aphid parasites! Use Aphidius colemani as a preventative or active control measure. Aphidius colemani is a parasitic wasp native to North America useful for biological control of aphids in greenhouses and outdoor growing. These tiny (1 8" or 2 3 mm) aphid parasites seek out aphid colonies to provide food and a place to oviposit. Adult A. colemani respond to alarm signals from plants to locate the aphids where
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