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Horticultural Pests

Pests are a major threat to crops, because they can cause a lot of damage in greenhouses. Therefore it is important that you are able to detect a pest in the crop on time. Click through and read more about the different greenhouse pests, the damage they can contain and the possible ways to combat them. 

Do you have more questions? Please contact one of our crop protection product specialists.

  • Aphid types

    Aphids are insects which causes big problems in horticulture. This insect appears all year and causes infestation on the growth of young shoots in a crop, but it can also spread viruses. Combating aphids is of great importance to prevent damage, but how ?

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  • Green peach aphid

    The originally Asian Myzus persicae green peach aphid now affects many host plants in Dutch horticulture, such as cucumber, pepper, eggplant, tomato and various cut flowers.

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  • Foxglove aphid

    The Aulacorthum solani foxglove aphid is an aphid species. The foxglove aphid affects various vegetable and ornamental crops such as eggplant, zucchini, lettuce, tomato, chrysanthemum, gerbera and the rose.

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  • Potato aphid

    The Macrosiphum Euphorbiae potato aphid originates from North America and, since its introduction to Dutch (glasshouse) horticulture, it is causing considerable economic damage. This aphid thrives well in many floriculture and vegetable crops including eggplant, bell pepper, lettuce, tomato and in roses.

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  • Black bean aphid

    In addition to harming beans, the black bean aphid (Aphis fabae) also causes damage to other greenhouse crops, such as alstroemeria, gerbera, cucumber and rose. Outside, this aphid only hibernates on a limited number of host plants. In the greenhouse, this aphid can develop all year round.

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  • Cotton aphid

    Since the 1980s, the Aphis gossypii cotton aphid has caused much economic damage in various Dutch horticultural crops. This aphid can establish itself on more than 700 different plants, including the cucumber, bell pepper, strawberry and chrysanthemum.

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  • Scale insect identification

    Scale insects are a pest that affects both vegetable and ornamental crops and they can cause considerable damage to these crops. Scale insects are known to feed on plant sap that it extracts from the plant.

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  • Strawberry blossom weevil?

    The strawberry blossom weevil is an insect that feeds on leaves and pollen. It is particularly common in strawberries, blackberries and raspberries. In the spring, the strawberry blossom weevil lays its eggs in the flower buds of the strawberry plant.

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  • Shore fly

    The shore fly Scatella stagnalis is an insect that mainly causes cosmetic damage to a crop, because it defecates on the leaves of a crop. The excrement of the shore fly causes black spots on the foliage. A shore fly feeds with rotting plant material and algae; so the fly does not cause any ‘biting’ damage to the crop.

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  • Potworm

    Potworm is a major problem in orchid cultivation. Damage varies from grower to grower, but damage can run into millions of euros.

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  • Suzuki fruitfly

    Suzuki fruitfly Drosophila suzukii is a dreaded pest that has become widely spread and is now also spreading rapidly in Europe.

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  • How do you control sciarid fly?

    The Sciara analis fly is an insect that is found in damp places in the crop - especially in places of algae growth. A sciarid fly generally lives on dead organic matter, but in the absence of this it also eats the roots of living plants.

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  • Spider mite

    Spider mites are mites which occur in many crops. The most common type in greenhouse crops is the Tetranychus urticae. The spider mites replicate quickly and in large numbers. This means that this pest can cause an enormous amount of damage to a crop in a short period of time

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  • Strawberry mite

    The strawberry mite (Phytonemus pallidus) is a small mite that is found mainly in strawberry crops. In this article, our specialists will provide their advice and tips for fighting strawberry mites. But how do you combat them?

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  • How do you control cyclamen mite?

    Cyclamen mite control can be done by natural enemies, such as the Neoseiulus cucumeris predatory mite. Prevent cyclamen mite and implement hygiene measures in the glasshouse.

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  • Caterpillars, butterflies and moths

    The caterpillars of different butterflies and moths cause damage to vegetable and ornamental crops. Whats kinds are there and how can you combat them?

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  • How do you control Duponchelia?

    The larvae of the Duponchelia fovealis moth have caused a great amount of damage in Dutch greenhouse horticulture since the 1990s. Ornamental plants such as cyclamen, gerbera, rose and begonia especially fall prey to Duponchelia, but it can also be a pest in pepper cultivation.

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  • How do you control Tuta absoluta?

    The tomato leaf miner moth Tuta absoluta is a very harmful leaf miner moth that is becoming an increasingly big problem in vegetable cultivation. This pest particularly affects the tomato, but it can also cause damage in eggplants and peppers.

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  • Heteroptera bugs

    There are many different types of heteroptera bugs, both harmful and useful species. Harmful heteroptera bugs occur in ornamental cultivation and vegetable- and small fruit crops and cause unwanted problems such as growth distortions, uneven maturation of fruits and loss of flowers.

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  • How do you control common green capsids (Lygocoris pabulinus)?

    Common green capsids (Lygocoris pabulinus) can be found right throughout Europe in vegetable- and ornamental crops as well as in tree nursery crops.

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  • How do you control the capsid bug?

    The capsid bug or Liocoris tripustulatus is found on common stinging nettles but also on a large number of different ornamental plants. In horticulture they are mostly found in the tops of plants of both ornamentals and in fruiting vegetables.

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  • Whitefly

    Whitefly is a common pest in horticulture, in vegetables as well as in floriculture. The insect damages plants by absorbing plant sap. This weakens the plant, which leads to reduced growth, deformation, leaves getting yellow and/or leaf loss.

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  • How do you control tobacco whitefly (Bemisia tabaci)?

    Bemisia tabaci tobacco whitefly was previously mostly found in (sub)tropical regions, but now this fly is found around the world in many different crops. The tobacco whitefly has many host plants, including bouvardia, hibiscus, gerbera, tomato, pepper and the cucumber.

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  • Thrips

    Thrips are small insecst which causes big problems in several crops. There are many different types. The most common and harmful in horticulture are the western flower thrips and onion thrips (Thrips tabaci), but also the rose thrips and Echinothrips americanus appear in greenhouses.

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  • Californian thrips

    Californian thrips, also known as Frankliniella occidentalis, are one of the most harmful insects in horticulture. They are particularly common in chrysanthemum, paprika, eggplant and cucumber crops.

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  • How do you control rose thrips (Thrips fuscipennis)?

    As the name suggests, this thrip species is found in roses – although this is not the biggest culprit in this crop. Although the Thrips fuscipennis rose thrip is not common in horticulture, it is good to be able to detect, recognize and combat rose thrips.

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  • How do you control cicadas?

    Cicadas are the lesser-known insects that aspirate plant sap from plant cells, creating rows of spots or rough, white specks on the leaves, flowers and fruits in crops. In cases of severe infestation, large parts of the leaves can discolor and even die.

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  • How do you control tomato leaf miners?

    The Liriomyza bryoniae tomato leaf miner creates a problem in crop cultivations such as tomato, pepper, lettuce, melon, gerbera and chrysanthemums. The larvae eat tunnels through the leaf, which leads to reduced stability of the plant and leaf, dehydration and release of the leaf plus reduced production.

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  • How do you control leaf miner?

    Leaf miner is found in vegetable- and ornamental cultivation. The most common species of leaf miner are Florida leaf miner (Liriomyza trifolii), Pea leaf miner (Liriomyza huidobrensis) and the Tomato leaf miner (Liriomyza bryoniae).

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  • How do you control springtails?

    Collembola springtails are insects that feed on organic matter, especially in the top soil layer. They eat fungi, algae, mosses and dead leaves, among other things. This initially seems positive, but this process affects the roots of living plants.

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  • How do you control ants?

    As soon as the weather warms up, it’s just a matter of when they appear. Because the fact that they will appear is a certainty for ants. In large numbers, they will settle in a certain spot from which they are then difficult to remove.

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  • Honeydew

    Honeydew is a clear, sticky liquid left behind on plants by many species of aphids, scale insects, whitefly and caterpillars. In principle, honeydew is not harmful to a plant, but it does have negative effects.

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Identify pests in the greenhouse

Many pests thrive in the warm, humid greenhouse climate and quickly become a threat to the crop. In our overview you can find out which pests occur in which crops and how you can combat them effectively. A large number of images and videos help to identify the uninvited guests and infographics summarize the most important information about the pest for you.

Effectively combat pests in the greenhouse

Biological and chemical pesticides are available to combat pests in the greenhouse. It is often advisable to use beneficial insects and other biological agents first. With these, the pests can be fought naturally and without chemicals and no resistances develop, as is often the case with chemical agents. In addition, they are more plant-friendly, not harmful to the environment and are also suitable for an integrated crop protection strategy.

Biological pest control in the greenhouse is often very effective, since the beneficial insects have a strong beneficial activity, i.e. they fight many pests every day. However, it is important to note a few points. These include, for example, the conditions in the greenhouse and the correct application of the beneficial insects. However, you will find detailed instructions in our product descriptions. If you have questions, we gladly help you.

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