Black sigatoka disease

Within a few days, the spots become a few centimetres in size and turn brown with light grey centres. These spots enlarge further and the tissue around the [...] leaves may die within a few weeks. Because of the lack of leaf tissues, fruit maturity is hampered. Life cycle and appearance of Black sigatoka disease [...] infection, hyphae emerge from the stomata and either develop into conidiophores with new conidia or grow across the surface and infect adjacent stomata. Both

American serpentine leaf miner

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, [...] Feeding spots made by adult females can also reduce yield, although except with ornamental crops, this is usually of less significance. Seedlings and young [...] before pupating, the grown larva cuts a sickle-shaped exit hole in the leaf with its mouth parts. After roughly one hour the larva crawls out of the leaf

Consumers

this way, we hope to make an active contribution to a sustainable society, with safe food in sufficient quantities to feed a rapidly growing population. [...] exclusively to professional growers and farmers. In order to provide you with the best possible service as a consumer, we have drawn up a list of frequently [...] plate, it has already had a very long journey. The plant first has to form fruit before the tomato can actually start to grow. In nature, insects and other

Tomato leaf miner

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, [...] Feeding spots made by adult females can also reduce yield, although except with ornamental crops, this is usually of less significance. Seedlings and young [...] before pupating, the grown larva cuts a sickle-shaped exit hole in the leaf with its mouth parts. After roughly one hour the larva crawls out of the leaf

Southern blight

losses can reach 5% of annual production. Symptoms and damage Symptoms begin with brown, aqueous lesions on the stem. As the damage progresses, it causes darkening [...] upper part, necrosis, loss of leaves, and death of the plant. Symptoms begin with brown, aqueous lesions on the stem. As the damage progresses, it causes darkening [...] phase), due to the occurrence of fungi inhabiting the soil, or associated with the seeds. In favourable conditions, these fungi cause necrosis of the young

Western flower thrips

inserted into the plant tissue with a saw-like ovipositor. Larvae are nearly transparent white or yellowish to orange-yellow, with a large head and bright red [...] buds may not open at all. Fruits can also be damaged, even at low densities, giving rise to deformities such as the “pig-tail” fruit sometimes found in cucumber

Citrus

tangerine, grapefruit, citron, kumquat, and shaddock, widely cultivated for fruit or grown as an ornamental. It is believed that citrus plants are native to [...] cultivation. Theses trees thrive in a consistent sunny, humid environment with fertile soil and adequate rainfall or irrigation. Today, in the United States

Charcoal rot

prevent Charcoal rot Plant in fields with no history of the disease Use disease-free planting material Rotate with non-host crops to reduce inoculum in [...] mostly found after plants are well established and after plants begin bearing fruit or are subjected to stress. Severely infected plants collapse and die. When [...] in the soil Minimize plant stress with optimal irrigation and fertilization regimes Prevent plant diseases by optimizing plant potential and crop resilience

Phytophthora blight

tubers, leaves and fruits. Late blight or Phytophthora blight (Phytophtora infestans f.sp. infestans ) causes water-soaked lesions with vague borders and [...] and white fluffy fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the stem, elongated brown lesions occur, usually circling [...] the overwintering structures which infect the host. Zoospores are spores with flagellae which enable them to move through water. Infection is usually from

Onion thrips

are inserted into the plant tissue with a saw-like ovipositor. Larvae are light to yellowish green in colour, with a large head and bright red eyes. The [...] tabaci) is found mostly along the main leaf veins, with most damage evident where these veins join. Fruit damage, for instance in cucumber, only occurs if [...] and pupal instars can be recognized by their developing wing buds. Compared with the prepupa, the pupa has longer, more developed wing buds and longer antennae