Miguel Calvo Agudo

Valencian Institute for Agricultural Research | IVIA · Plant Protection and Biotechnology Research Center

This part of the issue includes technical data sheets of foreign quarantine agents (not detected in Galicia) and published by the project International Plant Quarantine on 2021. We include a selection of the most relevant ones as we have reached 305 foreign pathogens published on 2021 by the web of the Project. It includes the following agents: Hel...

Honeydew is the sugar-rich excretion of phloem-feeding hemipteran insects such as aphids, mealybugs, whiteflies, and psyllids, and can be a main carbohydrate source for beneficial insects in some ecosystems. Recent research has revealed that water-soluble, systemic insecticides contaminate honeydew excreted by hemipterans that feed on plants treate...

Seed coating (‘seed treatment’) is the leading delivery method of neonicotinoid insecticides in major crops such as soybean, wheat, cotton and maize. However, this prophylactic use of neonicotinoids is widely discussed from the standpoint of environmental costs. Growing soybean plants from neonicotinoid-coated seeds in field, we demonstrate that so...

AGENTS Nº 315 NAMES .-Icerya seychellarum HOST - Mangifera indica GEOGRAPHICAL ZONE - Málaga ( Spain) Author - Miguel Sicilia & Miguel Calvo Agudo. Year - 2021 Quarantine Zone - Argentina, Brazil, USA. (EPPO) Brazil, Venezuela, Perú, USA, Ecuador (Andrés & International Plant Quarantine Workgroup, in press) Copyright of the photographs -Miguel Sic...

The use of some systemic insecticides has been banned in Europe because they are toxic to beneficial insects when these feed on nectar. A recent study shows that systemic insecticides can also kill beneficial insects when they feed on honeydew. Honeydew is the sugar-rich excretion of hemipterans and is the most abundant carbohydrate source for bene...

Neonicotinoids kill beneficial insects when they feed on honeydew. Honeydew is the excretion product of phloem-feeding hemipteran insects such as aphids, mealybugs, whiteflies, or psyllids. This route of exposure is likely to affect a much wider range of beneficial insects and crops than contaminated nectar and should be included in future environm...

Significance The use of insecticides in agriculture is one of the suggested causes of the decline in insect populations. Neonicotinoids are among the most widely used insecticides. However, they have important negative side effects, especially for pollinators and other beneficial insects feeding on floral nectar and pollen. We identified an exposur...

Honeydew is a rich sugar excretion of hemipteran phloem-feeding insects. It is a ubiquitous carbohydrate source in most forests and agricultural lands. Over the last decades, it has been demonstrated that honeydew is the main carbohydrate source for beneficial arthropods, including pollinators, parasitoids, predators and ants in many agroecosystems...

In agriculture, pest control is mainly based on the use of pesticides, which can induce undesirable effects on non-targeted beneficial organisms. This study analyses whether systemic insecticides can reach natural enemies and pollinators by feeding on honeydew, the sugar-rich excretion of hemipteran insects. To test this hypothesis, honeydew excret...