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Bad Bugs

What or more importantly who are 'Bad Bugs'? 'Bad bugs' are insects that either feed on, lay their eggs inside, or damage in any way, commercially or aesthetically sought after crops, plants and trees or bite, bother and spread disease to people, animals or birds. 'Bad Bugs' target weak plants; proper management, feeding and watering particularly under stress (drought, heat etc) will be the biggest factor in having few insect problems.

What is important to know about 'Bad bugs'?

  • Many 'Bad bugs' carry plant viruses and diseases which can cause more injury to a crop than the pest damage.
  • Side effects such as honeydew, a sweet sticky by-product of aphid or whitefly feeding can cause further damage and attract other pests and fungus.

What else can I do to control 'Bad bugs'?

  • Crop rotation
  • Screening
  • Apply preventative amounts of 'Good bugs' regularly to avoid heavy infestations.
  • Monitor your crop; add controls ('Good bugs') as needed.
  • Use non-toxic, earth friendly, low impact garden sprays
  • Nutrients; natural, organic fertilizer, micronutrients and foliar sprays.
  • Proper watering


There are many species of aphids which feed on plant juices and spread viral diseases. They vary in colours from green, yellow, orange to black. Aphids come out of hibernation pregnant and give birth to live pregnant young, resulting in a rapid aphid population explosion. Control Aphids with: Ladybugs, Praying Mantis, Lacewings, Aphidoletes, A.abdominalis, A. colemani, A. matricariae, A. ervi.


A caterpillar is the larval form of butterflies and moths. Caterpillars are voracious feeders and many of them are considered pests in agriculture. Control Caterpillars with: Trichogramma, Spined Solider Bug, BTK.


Flies carry disease, stress livestock and cause financial loss. For each adult fly trapped you eliminate 2000+ flies. The more fly stages you attack and the more methods you use the faster and better the control. Control flies with: Fly Parasites, Ophyra, Hister Beetles and many traps and baits.


The adult flying stage of fungus gnats do not feed but spend their time breeding and laying eggs. The larvae feed on plant roots causing weak, slow growing plants. The adults can be seen flying just above the soil. The key to controlling fungus gnats is prevention. Control Fungus Gnats with: Hypoaspis, Beneficial Nematodes, Atheta (rove beetle).


Leafminers are a d group of insects which includes some flies, beetles, moths, and sawflies. They are so named because of their habit of mining between the upper and lower surfaces of leaves. They are one of the most serious pests of commercial flower crops and bedding plants. Control Leafmines with: D. Isaea, D. Sibirica.


Mealybugs pierce plant cells and suck the sap, direct feeding can result in distorted foliage, yellowing, stunting and wilting. Mealybug feeding will also excrete honeydew as a by-product that causes sooty mould. Mealybugs can transmit plant viruses. Control Mealybugs with: Cryptolaemus, Leptomastix


Scale insects (There are many species of scale), feed on a wide variety of plant sap, feeding slowly reduces plant vitality. Heavily infested plants grow poorly and may suffer dieback.Some scale produce massive amounts of honeydew creating a mould problem. Scale are small insects with no visible legs or antenna. Control Scale with: Ladybugs, Aphytis melinus, Lindorus, Metaphycusm


Spider mite populations can become large in a short period of time. Control Spider mites by an introduction of predatory mites. Environmental controls; Spider mites prefer hot and dry conditions. Lowering temperatures and increasing humidity creates the correct conditions for beneficial mites to outbreed and control pest mites. Control Spider mites with: P. persimilis, A. fallacis, N. californicus, M. longipes, G. occidentalis, Feltiella, Stethorus


Thrips are small, slender insects with feathered wings. They damage plants by sucking plant juices, stinging, rasping at fruit and leaves that can cause scarring and transmit plant viruses. Damage can cause leaves to turn pale and silvery, and then die. Control Thrips with: A. cucmeris, A. degenerans, Orius, A. Swirskii, D. Hesperus


Whiteflies are difficult to control, so do not allow them to build up before introducing beneficials. Hang yellow sticky cards to monitor. 'Growers saying': If you see one whitefly you already have too many. Control Whiteflies with: Encarsia, delphastus, Eretmocerus, A. Swirskii

Natural Insect Control