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is the largest of all insect orders and displays an enormous variety of form, size and habit. A number of species are a serious pest in crops or…
wings. First-instar nymphs are 0.3 mm long and have legs, but soon settle to form circular, initially white scales. Circular scales reproduce…
for the plants Ensure there is adequate soil drainage Apply nitrogen in the form of nitrate instead of ammonium Prevent damage during harvest and…
algae extracts. Biological substances are applied to the seed in a powder form or as a liquid. An even layer covers the whole seed. In this way, the…
number of flower stems and a longer vegetative stage. The root damage can also form entry points for pathogens. Solution Finder Find solutions for…
females (alata) are yellow and black with dark wing veins while the wingless forms (apterae) are yellow with black cornicles, antennae, legs, and…
apple aphid Aphids have a complex life cycle, with both winged and wingless forms of adults, and a great variety in colour. They moult four times…
in the store. Damage symptoms After invading the fruit, the larvae first form a small cavity just under the skin. The entry hole can be seen and is…
for their prey and suck them out. The skin is left behind in its original form. Visual effect Macrolophus pygmaeus sucks out the body contents of its…
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