Obscure mealybug

plants. Fruit and flowers are also fouled, rendering them unfit for sale, and the reduced level of photosynthesis in the leaves also reduces flower and fruit [...] are often located on the horizontal part of the stalk. These mealybugs can also cause damage in ornamental crops such as passiflora, pelargonium, and orchids [...] nourishment from roots, whilst others are gall-formers. A few species can also transmit harmful viruses. Mealybugs inflict damage on the crop in various

Tomato russet mite

General The tomato russet mite (Aculops lycopersici , also referred to as Vasates lycopersici, Vasates destructor and Phyllocoptes destructor in older [...] turn a rusty brown colour, and in serious cases they may snap. The fruit can also be affected, and when this happens in tomatoes, the skin becomes coarse and [...] yellow as they age. The mites have two nymphal stages: sometimes they are also called larva (1st stage) and nymph (2nd stage). The first nymphal stage is

Tobacco aphid

South America. The tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered in a range of crops in greenhouses, such as sweet pepper, aubergine [...] production. They are usually found in closely packed colonies, although they are also capable of dispersing through the crop by walking. The tobacco aphid tends [...] known to what extent tobacco aphids ( Myzus persicae subsp. nicotianae ) can also transmit viruses. Life cycle and appearance of Tobacco aphid Aphids have

Downy mildew of rose

symptoms Downy mildew pathogens infect mostly the leaves but occasionally also stems and fruits. They cause lesions on the upper leaf surface, bordered [...] infected first and this causes the plant to fall over. In cabbage the stem is also infected in severe epidemics. In blackberry, red stripes may occur on the

Phytophthora blight

General Late blight (Phytophthora infestans f.sp. infestans) is also known as Phytophthora blight, tomato blight, early / late blight tomato, potato blight [...] Infection is usually from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing root tips promote germination and attract

The journey of sustainable citrus farming in agriculture

Ulti-Mite . These biocontrol solutions have not only proven to be successful but also reduced the reliance on chemical pesticides. The path to environmental friendly [...] methods. These sustainable approaches not only control pests effectively but also yield healthier, higher-quality fruits while minimizing environmental impact

Leaf miners

this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown plants of fruiting vegetable crops, however [...] older larvae make wider tunnels. Feeding spots made by adult females can also reduce yield, although with the exception of ornamental crops, this is usually [...] method and the susceptibility of the host plant. This susceptibility can also vary considerably from one cultivar to another. Indirect damage arises when

American serpentine leaf miner

leaf miner ( Liriomyza trifolii ) originates from North America, but occurs also in Europe since about 1976. The American serpentine leaf miner ( Liriomyza [...] this can lead to burning in fruit such as tomato and melon. Loss of leaves also reduces yield. In full-grown plants of fruiting vegetable crops, however [...] older larvae make wider tunnels. Feeding spots made by adult females can also reduce yield, although except with ornamental crops, this is usually of less

Nematodes established solution for Nesidiocoris in France

backpack sprayer directed at the head of the plant in a very localized way, and also the treatment robot, which is used by blocking the lower nozzles so that [...] results are very clear. It is very effective on the larvae. The nematodes also act on Macrolophus , which is biologically very close to Nesidiocoris . Therefore [...] Nesidiocoris was eagerly awaited by producers in the South of France, but also, more recently in the north. ‘We had reached a technical impasse with this

Bacterial wilt, brown rot

The vascular tissue in the tubers becomes grey-brown and the tuber eyes also turn grey-brown. This disease can be distinguished from Clavibacter by the [...] from the roots of infected plants to neighbouring plants. The bacteria can also be transported by irrigation water. Disease incidence is highest when soil