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Aphid killer for vegetables

Updated: 22 October 2026

Your courgette leaves are sticky and you plan to eat them, so safe for edibles on an amazon title is not enough. You need the harvest interval printed for that crop on the bottle you actually spray. Aphid killer for vegetables in the UK means matching Provanto Smart, Provanto Ultimate, SB, soap, or the weaker UK Grow line to permission and wait days, not to marketing alone. The [Aphid killer comparison](/hub/pest-control/aphid-killer) holds prices and stars. Retailer label excerpts below are not a substitute for the pack in your hand. Peter F. checked these listings on 20 October 2026. A qualifying purchase can earn a commission at no extra cost to you.

Your courgette leaves are sticky and you plan to eat them, so safe for edibles on an amazon title is not enough. You need the harvest interval printed for that crop on the bottle you actually spray.

Our top picks

Provanto Provanto Smart Bug Killer, twin 1 L

Best overall

Provanto Provanto Smart Bug Killer, twin 1 L
9.4/10about £12.00
View offer
Provanto Provanto Ultimate Bug Killer, twin 1 L

Alternative

Provanto Provanto Ultimate Bug Killer, twin 1 L
9.4/10about £9.98
View offer
Growth Technology Ltd SB Plant Invigorator 500 ml

Best value

Growth Technology Ltd SB Plant Invigorator 500 ml
8.4/10about £8.53
View offer
On this page
  1. 1.The title is not the interval
  2. 2.Provanto Smart on food crops
  3. 3.Provanto Ultimate on food crops
  4. 4.Sprays that state no harvest wait
  5. 5.Bees on a flowering crop

The title is not the interval

Amazon bullets say ornamentals and edibles, or perfect for edible crops, without giving days until pick. HSE amateur rules require you to follow the statutory label for the crop and rate. Eat only after the interval on the bottle you used for that exact crop. The twin-pack listings for Smart and Ultimate do not print full crop tables; if the bottle disagrees with a grocery-site snippet, the bottle wins. Ready Steady Defend soap claims safe right up until harvest in seller text; that is not the same as a numbered interval retrieved for that ASIN. UK Grow repeats edible language with no day count and mixed chilli reviews. Treat those as reasons to read whatever label arrives, not as permission to pick tomorrow. Nozzle technique is on how to use aphid killer.

Provanto Smart on food crops

Tesco grocery label text for Provanto Smart Bug Killer ready-to-use 1 L, the same product line as the Smart twin though not the same ASIN card, gives examples: glasshouse tomato, pepper, chilli, cucumber, aubergine, courgette, and summer squash may allow two sprays ten days apart with a three-day harvest interval on those crops. Outdoor apple may allow one spray with a fourteen-day harvest and not before flowering; mature apple control may fail. Ornamental and glasshouse lines on that label cite up to two applications per year in places. The B0DDKV3GC3 twin-pack page does not reproduce that table. Use Smart on vegetables when the physical label matches your crop and you can wait the printed days. Do not merge the three-day glasshouse figure with unrelated crops. Systemic action is not bee-safe spraying on open flowers. The mode-of-action split is on systemic vs contact aphid spray.
Provanto Provanto Smart Bug Killer, twin 1 L

Testsieger

Provanto Provanto Smart Bug Killer, twin 1 L
9.4/10about £12.00
View offer

Provanto Ultimate on food crops

Morrisons preparation text for Provanto Ultimate Bug Killer spray 900 ml, another pack size in the Ultimate line, lists crop tables with three days on protected tomato, pepper, cucumber, courgette, aubergine, summer squash, and chilli, and seven days on several brassicas and beans, with different caps per crop. The twin pack B0DDKVTNY1 is two 1 litre bottles at £9.98; assume the same brand line but verify the label on delivery before you treat food. Ultimate is contact with up to two weeks protection claimed on amazon.co.uk, not eight weeks systemic. Choose it on edibles when the label table fits and you accept contact re-wetting if aphids return before the interval ends.

Sprays that state no harvest wait

SB Plant Invigorator label material from the supplier PDF states use on all edible crops with no harvest interval, physical surfactants, avoid open blooms, and patch test. Amazon lists no harvest interval at £8.53 for 500 ml. Manufacturer copy also says it does not harm birds and bees; that is seller wording, not an independent bee assessment. You still avoid spraying flowers when bees are active. SB suits pick-soon salad and herbs when you will wet both sides and repeat, compared with systemic products that carry longer residue stories and stricter caps. It does not replace reading the label if your crop is not covered.

Bees on a flowering crop

Do not spray plants in flower or foraging bees. Flupyradifurone on Smart is not bee safe in this comparison. Physical SB tells you to avoid open blooms. If courgettes are flowering and bees are working, mechanical removal or waiting may beat a spray day. Bands and cards do not solve aphids on edible soft growth, but cards can show rising flyer pressure in a greenhouse tomato house.

Common questions

Can I spray tomatoes and eat them?
Only after the interval on your bottle for tomato under glass or outdoors as the label splits them. Tesco Smart text cites three days on listed glasshouse fruiting vegetables; Ultimate Morrisons text cites three days on protected tomato-type crops. Read your pack.
What is the wait for apples?
Smart retailer text cites fourteen days and one spray, not before flowering, on outdoor apple. Other products may forbid apple entirely; check the table.
Does SB need a harvest interval?
The SB label line used here states none on edible crops. Still avoid blooms and patch test.
Is the soap until harvest a legal interval?
It is seller text on Ready Steady Defend, not a numbered HSE interval retrieved for that ASIN. Treat it cautiously on food.
Can I spray flowers on a courgette while bees are working?
No. Wait for bloom to pass or use non-spray methods. Labels warn on blooms for SB; systemic products are not an excuse to spray open flowers.
Is the Smart concentrate cleared for the same crops as the ready-to-use?
Not assumed. Concentrate amazon bullets conflict on pesticide-free and 8 weeks. Read the tub label before food use.
What if the bottle in the twin pack has a different table?
The physical bottle wins over amazon or grocery snippets every time.

Related pages

Best aphid spray UK

Aphid killer

Aphid killer buying guide: spray, band or yellow card

How to use aphid killer: spray, band and card steps

Systemic vs contact aphid spray: 8 weeks or 2 weeks

Sources

Public UK sources used for this comparison. Shelf prices, stars and review counts are the amazon.co.uk figures captured for these eight listings on 20 October 2026. Last checked 22 October 2026.

  1. RHS, Aphids (retrieved 20 October 2026)
  2. HSE, garden and allotment pesticide use (retrieved 20 October 2026)
  3. HSE garden pesticide search (retrieved 20 October 2026)
  4. GOV.UK, action to protect bees from pesticides (retrieved 20 October 2026)
  5. RHS, grease bands and tree barrier glues (retrieved 20 October 2026)
  6. RHS, glasshouse whitefly (retrieved 20 October 2026)
  7. Tesco, Provanto Smart Bug Killer label text (retrieved 20 October 2026)
  8. Ashwood Nurseries, Provanto Ultimate Bug Killer (retrieved 20 October 2026)