zoospores produced in the sporangia. For germination on above-ground plant parts, leaf wetness is required. Dispersal is by wind and rain causes the…
Agrotis segetum . The larvae of these moths usually feed on roots and plant parts close to the ground, thereby often cutting the stems of young…
There are many species of leaf miner affecting various crops in temperate parts of the world. Under natural conditions, the larvae of these species…
(Frankliniella occidentalis) are laid in leaves, flower petals and in the soft parts of stalks. They are inserted into the plant tissue with a…
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 and falls to…
affected plants present girdling of the stem, which causes wilting of the upper part, necrosis, loss of leaves, and death of the plant. Symptoms begin…
Mealybug & scale damage Although most species of mealybugs feed on the aerial parts of the plant, some species extract their nourishment from roots,…
The colour and pattern of the caterpillars is highly variable and depends partly on the host plant, the stage of development and the climate. A…
the coolest spot, or at least in the shade, particularly during the warmest part of the day. Ensure that the hive gets some sunlight during the dark…
morning. Damage symptoms Although most species of mealybug feed on the aerial parts of the plant, some species extract their nourishment from roots,…
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