• Bacterial canker of tomato

  propagation material. It spreads to other seedlings by touching the plants in greenhouse crops and by water in field crops, for example through splashes [...] bacteria. The bacteria can also be dispersed by machinery, crates and tools. The bacteria infect the new plants by entering through wounds and then growing [...] other than that the disease is difficult to distinguish from wilting caused by other pathogens. On potato tubers, first discolouration of the vessel tissue

• Downy mildew of Cucurbits

  also stems and fruits. They cause lesions on the upper leaf surface, bordered by the veins, which are first yellow and then turn brown. On the underside of [...] and the germ tubes infect the plants either through the stomata or directly by penetrating the cuticula. For germination free water is required. For most [...] crop rotation with non-host crops Prevent a humid microclimate. Achieve this by lowering crop density, good aeration during propagation and maintaining a

• Vine mealybug

  taste can also be affected. An infection by Planococcus ficus can make the plants more susceptible to injury caused by other pests and fungal diseases. Life [...] Planococcus ficus belongs to the family Pseudococcidae, and is also known by the names Mediterranean vine mealybug and Grapevine mealybug. As the name [...] growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation. The overall effect is a reduction of photosynthesis and therefore

• Black leg of seedlings

  that are in a sub-optimal condition or suffer from stress, caused for example by too much water, too high or low temperatures or sudden fluctuations in temperature [...] conditions, especially dehydration. Germination of the oospores is stimulated by exudates from roots of a susceptible host nearby. The oospores germinate and [...] or substrate. Oospores are dispersed when soil particles are moved around by humans or machinery. Pythium can survive very well in the soil or substrate

• Fall Armyworm

  possible for fall armyworms to spread over large areas rapidly. Adults fly by night, and are attracted to lights, especially those with a strong ultra-violet

• Corn earworm

  Overview The corn earworm is a major pest affecting over 100 crops, of which the most prominent varieties are corn, sorghum, cotton, aubergine, pepper, and tomato. They primarily feed on flowers and f

• Asian citrus psyllid

  southern states and Mexico however the state of Florida is the most affected area by the vectored disease. Damage symptoms The psyllid is a sucking insect that [...] so black sooty mold develops on the honeydew. Their feeding damages citrus by burning back new shoots or causing leaves to twist or notch as they mature [...] (HLB). Nymphs and adults of the psyllid take the bacteria into their bodies by feeding on bacteria-infected plants and then disease is spread when adults

• Cabbage looper

  General Trichoplusia is not only a damaging pest in crucifers, their favourite host, it can also be found in crops such as tomato, pepper, some cucurbits, soybean, sesame and cotton. One of the reason

• Long-tailed mealybug

  growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation. The overall effect is a reduction of photosynthesis and therefore [...] appearance of long-tailed mealybug The long-tailed mealy bug is easily recognized by the long, posterior tail filaments, which are at least the length of the body

• Tomato russet mite

  Solanaceae may be affected to a lesser extent. Damage symptoms Damage is caused by the mites sucking out the contents of plant cells. Affected leaves are slightly