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A planthopper is any insect in the infraorder Fulgoromorpha, [1] in the suborder Auchenorrhyncha, [2] a group exceeding 12,500 described species worldwide. The name comes from their remarkable resemblance to leaves and other plants of their environment and that they often "hop" for quick transportation in a similar way to that of grasshoppers.
These minute insects, colloquially known as hoppers, are plant feeders that suck plant sap from grass, shrubs, or trees. Their hind legs are modified for jumping, and are covered with hairs that facilitate the spreading of a secretion over their bodies that acts as a water repellent and carrier of pheromones . [ 1 ]
The gears keep the hind legs in synchronization, allowing the bugs to jump accurately in a straight line, at an acceleration of nearly 400 g in two milliseconds. [2] Each leg has a 400-micrometer strip of tapered teeth, pitch radius 200 micrometers, with 10 to 12 fully interlocking spur-type gear teeth, including filleted curves at the base of ...
Distributed worldwide, all members of this group are plant-feeders, and many are vectors of viral and fungal diseases of plants. It is also common for Auchenorrhyncha species to produce either audible sounds or substrate vibrations as a form of communication.
The beetle is supine, on its back, in the pre-jump stage, and over ~2-3s it rotates its prothorax (foremost section) down to touch the ground in a bracing position. [4] In the takeoff phase the prothorax rotates rapidly upward in a "snap", launching the beetle off of the ground and ballistically into the air. [ 4 ]
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These plants can help repel bugs in the garden: Nasturtium. Nasturtiums are easy to grow from seed, and the bonus is that the leaves and flowers are edible and can be used to garnish salads or drinks!
Flea beetles can be deterred by a number of different companion plants, that can be grown intercropped in a garden to benefit neighboring plants. For example, thyme, catnip, and other kinds of mint cover up the scent of nearby plants. [6] Radishes, on the other hand, can be grown as a trap crop, luring the flea beetles away from more important ...