• Beet armyworm

  es for the growth of the crop. With a substantial population of caterpillars, the damage can spread to the stems, and in the worst cases to the fruit. [...] a dark brown or black. The head and thorax are brown and the abdomen grey-brown. The forewings have a yellowish, kidney-shaped mark. The white hindwings [...] even black. The colour and pattern of the caterpillars is highly variable and depends partly on the host plant, the stage of development and the climate

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• Macrolophus pygmaeus

  segment is black, and a black stripe runs behind the eyes. The first part of the forewings is a transparent, soft green with a small black spot in the middle [...] and the males between 2.9-3.1 mm. They are slender with long legs and antennae. The bugs are green except for occasional small black markings: the first [...] adults are small, slender predatory bugs with distinctive black markings, while the nymphs are pale green with red eyes. Both adults and nymphs are voracious

• Tomato leafminer

  Damage symptoms The most distinctive symptoms of damage done by the tomato leaf miner ( Tuta absoluta) are the blotch-shaped mines in the leaves. Caterpillars [...] mine inside the leaf, stem or fruit. In the second to fourth instars they become greenish with a black band behind the head. The prepupae of the tomato leaf [...] palps, that are well developed. Black spots are present on the anterior wings. Adults are nocturnal and usually hide between leaves during the day. Recommended

• Western flower thrips

  insect. The eggs of the western flower thrips (Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks. They are inserted [...] buds. Compared to the prepupa, the pupa has longer, more developed wing buds and longer antennae that are curved back over the head. The prepupal and pupal [...] causing the surrounding tissue to die. The resulting silver-grey patches on leaves and the black dots of their excreta indicate their presence in the crop

• Top diseases in roses - Powdery Mildew

  February 17, 2023

  penetrates the plant cell and takes up nutrients from the epidermal layer of plant cells. Most of the fungus remains on the outside of the plant surface [...] On the mycelium on the plant surface, new conidiophores are formed, structures which contain new spores, the conidia. These conidiophores are the fluffy [...] mildew. Conidia are the main means of dispersal. They are dispersed by wind, as are the ascospores. In general, powdery mildew fungi are not very resistant

• Chula Brand is a pioneer in biological pest control in papaya

  friendly one. What was the most challenging at the beginning to reach the biological management we currently have, was to understand the adaptability of [...] care for the health of the crop, its workers and the final consumer, who now can enjoy a product that is completely safe for consumption. The future of [...] company in the production and export of papayas, which has managed to control the pests responsible for losses in its production in a safe and effective way.

• Parasitic wasps

  begin to feed on the host pest. They consume the host from the inside, which ultimately leads to the death of the host. Pupal stage: After the larvae have consumed [...] What are parasitic wasps? Parasitic wasps are small insects that play a crucial role in natural pest control. They are called "parasitic" because they [...] inside the host insect, eventually killing it. These wasps are highly specialized, with different species targeting specific pests. They are effective in reducing

• Two-spotted spider mite

  to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck out the contents. The empty [...] species worldwide and many of them are major crop pests. The two-spotted spider mite ( Tetranychus urticae ) is by far the most important species in greenhouses [...] to loss of the crop. The nymphs and adults also produce webs, and plants can get completely covered with such webs in which the mites live. The webbing and

• Biological crop protection: pest and disease control with minimal to no resistance risks

  June 17, 2025

  a high population of pests and diseases. The quicker the lifecycle of the pest or pathogen, the higher the likelihood for resistance. Why is biocontrol [...] chance of being resistant to the chemical. The most resistance occurs in crops cultivated in a monoculture where crops are grown in large numbers with a [...] mechanism of the parts of the plant above ground, the so-called induced systemic resistance (ISR) and it produces compounds that degrade the fungal disease