Aphidius ervi – Large Aphid Parasite for Potato & amp; Glasshouse Aphid Control

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.pest-list{display:flex;flex-wrap:wrap;gap:6px;} .pest-chip{display:inline-flex;align-items:center;gap:6px;background:var(--green-pale);border:1px solid #c3e0ba;color:var(--green-dark);font-size:0.76rem;font-weight:600;padding:6px 12px;border-radius:20px;line-height:1.2;} .pest-chip svg{color:var(--green);flex-shrink:0;} .pest-chip.more{background:var(--bg-soft);border-color:var(--border);color:var(--text-light);font-weight:500;font-style:italic;} .pest-chip.more svg{color:var(--text-light);} /* IDEAL CONDITIONS */ .cond-wrap{margin:20px 0;} .cond-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;} .cond-card{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;display:flex;gap:9px;align-items:flex-start;} .cond-card svg{color:var(--blue);margin-top:2px;flex-shrink:0;} .cond-body{min-width:0;} .cond-label{font-size:0.64rem;font-weight:500;color:var(--text-light);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:2px;} .cond-value{font-family:var(--font-head);font-size:0.79rem;font-weight:600;color:var(--text);line-height:1.35;} /* APPLICATION */ .apply-wrap{margin:20px 0;} .apply-list{display:flex;flex-direction:column;gap:7px;} .apply-item{display:flex;gap:11px;align-items:flex-start;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:10px 13px;} .apply-num{width:22px;height:22px;border-radius:50%;background:var(--green);color:#fff;font-family:var(--font-head);font-size:0.7rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px;} .apply-item p{font-size:0.78rem;color:var(--text-light);line-height:1.55;margin:0;} /* HOW IT WORKS */ .reassurance-block{background:var(--blue-pale);border:1px solid #b3e4f9;border-radius:var(--radius);margin:20px 0;overflow:hidden;} .reassurance-header{background:var(--blue);padding:10px 15px;display:flex;align-items:center;gap:9px;} .reassurance-header 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.faq-list{display:flex;flex-direction:column;gap:6px;} .faq-item{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--bg);} .faq-toggle{position:absolute;opacity:0;width:0;height:0;pointer-events:none;} .faq-label{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 14px;cursor:pointer;font-family:var(--font-head);font-size:0.79rem;font-weight:600;color:var(--text);user-select:none;transition:background 0.15s;line-height:1.4;} .faq-label:hover{background:var(--bg-soft);} .faq-q-icon{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:var(--bg-soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--blue);transition:background 0.15s,color 0.15s,transform 0.2s;} .faq-answer{max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.2s;font-size:0.78rem;color:var(--text-light);line-height:1.7;padding:0 14px;background:var(--bg-soft);} .faq-answer a{color:var(--blue);} .faq-toggle:checked + .faq-label{background:var(--blue);color:#fff;} .faq-toggle:checked + .faq-label .faq-q-icon{background:rgba(255,255,255,0.2);border-color:rgba(255,255,255,0.4);transform:rotate(45deg);} .faq-toggle:checked ~ .faq-answer{max-height:500px;padding:12px 14px;border-top:1px solid rgba(1,173,240,0.15);} .faq-toggle:focus-visible + .faq-label{outline:3px solid var(--blue);outline-offset:-2px;} /* CLOSING FOOTER */ .closing-trust{margin-top:22px;padding:15px 16px;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;} .closing-trust-text{display:flex;align-items:flex-start;gap:10px;flex:1;min-width:200px;} .closing-trust-text svg{color:var(--green);margin-top:2px;flex-shrink:0;} .closing-trust-text p{font-size:0.78rem;color:var(--text-light);line-height:1.6;} .closing-trust-text strong{color:var(--text);font-weight:600;} .closing-contact{display:flex;flex-direction:column;gap:5px;align-items:flex-end;} .closing-contact a{display:inline-flex;align-items:center;gap:5px;font-family:var(--font-head);font-size:0.74rem;font-weight:600;color:var(--blue);text-decoration:none;padding:6px 12px;border:1px solid var(--blue);border-radius:var(--radius-sm);transition:background 0.15s,color 0.15s;white-space:nowrap;} .closing-contact a:hover{background:var(--blue);color:#fff;} .closing-contact a svg{flex-shrink:0;} The parasitoid built for large aphids like potato and foxglove Large aphids such as the potato and foxglove aphid are too big for the small-species wasps to handle well, which is where Aphidius ervi comes in. This parasitic wasp is sized and tuned to attack large-bodied aphids, laying an egg inside each host that turns it into a mummy. Growers often pair it with Aphidius colemani so the two wasps together cover both the large and small aphids in a mixed infestation. Targets large aphid species Pairs with colemani for full coverage Ships live, overnight Tuesdays Live insects ship on Tuesdays only and arrive Wednesday. Orders must be placed 7 days in advance. Anything ordered by 3pm EST Tuesday ships the following Tuesday by UPS overnight shipping. UPS overnight shipping on live insects Bundle and save on shipping 5% off with subscription Why it's different Broad aphid sprays vs. a large-aphid parasitoid Aphid sprays Small-species predators struggle with big aphids Sprays miss aphids sheltered in the canopy Aphids bounce back after chemical knockdown Residue and harvest timing to manage Broad sprays kill your other beneficials One-and-done reactive treatment Aphidius ervi Sized specifically to parasitize large-bodied aphids Wasps track down colonies using plant and honeydew cues Parasitized aphids become mummies that cannot reproduce No residue, no re-entry interval Selective wasp spares the rest of your biocontrol Weekly releases build ongoing large-aphid control What makes it work Why ervi is the large-aphid answer Made for large aphids Potato, foxglove Ervi is tuned to large-bodied aphids like the potato and foxglove aphid, the species that smaller parasitoids and predators handle poorly. Parasitizes from within A female lays an egg inside each large aphid. The developing wasp consumes the host, which hardens into a mummy, ending that aphid and its offspring. Pairs with colemani Running ervi alongside colemani covers both large and small aphids at once, which is ideal when you have a mixed-species infestation. Hunts the hidden colonies The wasps use plant distress signals and honeydew to locate aphids in the tight spots that foliar sprays cannot reach. Self-renewing population New wasps emerge from the mummies and keep hunting, so a weekly program develops an on-site defense that compounds over time. Simple to release Tap the carrier out among the plants in the cooler part of the day. No mixing, no sprayer, no protective gear. What it targets Pest species it targets Potato aphid Foxglove aphid Glasshouse potato aphid Tobacco aphid Ideal conditions Where it works best Temperature Most effective 68-77°F (20-25°C) Humidity Moderate greenhouse humidity Mode Parasitizes aphids into mummies Program Weekly during aphid pressure How to apply Application instructions 1 Open in the cool morning or evening; spread the material on slabs or in release boxes near colonies. 2 Keep it dry and undisturbed for a few days after placing. 3 Typical rate 0.25-2 per m²; repeat weekly during aphid pressure. 4 Pair with colemani for mixed small and large aphid infestations. How ervi clears large aphids 1 Release near the colonies Open the container in the cool morning or evening and tap the wasps out across the grow near any large-aphid clusters. 2 Wasps find their hosts Females track down large aphids and lay an egg inside each one. 3 Hosts become mummies The wasp larva develops inside the aphid, killing it and leaving a hardened mummy behind. 4 Wasps keep cycling New adults emerge from the mummies to hunt again, so weekly releases hold large-aphid numbers down. In the package What you get and how to size it What ships to you Live Aphidius ervi parasitoid wasps Carrier for even release Weekly release schedule and instructions Insulated overnight packaging Sizes and options Release size: matched to your canopy area Pairs well with: Aphidius colemani for mixed aphid infestations Not sure of the species? the Aphidius 4-Way Mix covers everything Large aphids or a mix? Ervi is for large species like potato and foxglove aphid. If you also have small aphids, add colemani or step up to the 4-Way Mix. Tell us what you see and we will sort it out. Call or email us: 716-217-0353 / [email protected] Questions Frequently asked questions How do I know my aphids are the large kind? Large species like potato and foxglove aphid are noticeably bigger than the small melon and cotton aphids that colemani handles. If you are unsure which you have, either send us a description or go with the Aphidius 4-Way Mix, which covers both sizes at once. Can I run ervi and colemani together? Yes, and many growers do. Ervi covers the large aphids while colemani handles the small ones, so together they close the gaps in a mixed infestation. If you would rather buy one product, the 4-Way Mix bundles multiple species for you. How do I confirm it is working? Watch for aphid mummies, the swollen bronze shells left after a wasp develops inside. Mummies mean the wasps have established and are reproducing. Fresh aphid growth should taper over the following weeks. When do these ship and when should I release? Live insects ship overnight on Tuesdays only, so they arrive Wednesday while still fresh. Place your order at least 7 days ahead so we can include you in the next weekly dispatch. We cannot ship live insects to HI, PR, VI, GU, AS, or PW. Open the package and release the same day it arrives. What if my order arrives damaged or the insects are dead on arrival? If you receive a defective or damaged unit, email us a photo at [email protected] and we'll make it right immediately. For change-of-mind returns, we accept returns within 30 days for items in new, resalable condition. If you're not sure whether this product is right for your setup, call us first at 716-217-0353. We'd rather answer your questions before you order. Why should I buy this from Happy Hydro instead of somewhere else? Happy Hydro has been selling growing equipment since 2006. We've carried Beneficial Insects for years because the biology works and customers who buy it leave happy. Have questions before you order? Call 716-217-0353 or email [email protected]. We're easy to reach and happy to help! Questions? We're easy to reach.Happy Hydro has been serving growers since 2006. Call or email us before you order, after you order, or any time something comes up. When you're happy, we're happy. 716-217-0353 [email protected] Show more