• Whitefly

  leaves can wilt and drop. Such leaf damage can in turn influence the development of fruit and lead to a reduction in yield. By sucking plant sap and secreting [...] fruit is unsaleable. In serious cases the fruit will rot. Sooty moulds also develop on the leaves, reducing photosynthesis and transpiration. Viruses can be

• Rose

  different cultivars. The rose is a woody, perennial plant which usually develops as a shrub, climbing or trailing with a stem that has sharp thorns. The

• Green peach aphid

  in colour. When reproduction is asexual, the young aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. When [...] abdomen and several transverse black bands across the body. Nymphs that develop into winged adults are often pink or red in colour. Recommended for you

• Black sigatoka disease

  the stomata. After infection, hyphae emerge from the stomata and either develop into conidiophores with new conidia or grow across the surface and infect

• Strawberry

  accessory fruit. This means that the fleshy, edible part of the fruit does not develop from the plant’s ovaries, but from the receptacle that holds these same

• Chili pepper

  shape is ellipsoid-conical to lanceolate. The fruit (the peppers) usually develop from a pale yellow to a bright red when ripe. Varieties can come in other

• Radish

  parts of the world. The seeds are used to produce oil. Other varieties are developed for sprouting and their roots and leaves are consumed either cooked or

• Citripar

  citri ) and vine mealybugs ( Planococcus ficus ). Visual effect Pupae develop in the mummified skin of the host and look like swollen mealybug larvae [...] effective at temperatures around 25°C/77°F. The lowest temperature at which development can occur is 13°C/55°F; the highest temperature is 38°C/100°F. Combined

• Bacterial soft rot, bacterial stem rot

  stem through the xylem vessels. High humidity is required for disease development. Erwinia carotovora subsp. carotovora or Pectobacterium carovora can also

• Pea blight, leaf and pod spot

  dispersal of these conidia. There is no known sexual stage. Ascochyta fungi develop most rapidly at temperatures below 20 °C and the spores require water for