The perennial herb batch is known for its refreshful fragrance and feeling as well as its extremely invasive root system . There are over 30 species of plenty , the most popular being peppermint and Mentha spicata . Mint is used to tang toothpaste , candy and tea , and it has been used as a familiar plant and act as a natural repellent for a wide variety of worm . Several insects are not offended by the smell of mass and often attack the herb .
Mint Flea Beetles
The eggs of the mint flea mallet ( Longitarsus waterhousei ) overwinter in land and hatch in the other leaping . The destructive mint flea beetle larvae tunnel underground and feed on the roots of the lot industrial plant . Adult mint flea mallet appear in June and July and begin eating the leave of the mint industrial plant , filling foliation with an abundance of little holes . Adult flea mallet partner and the distaff deposits her eggs in the soil in July and August .
Chemical control only work on adult mint flea beetles . Spray plants with a foliar insecticides in early July to control beetles and to prevent female from lay their eggs . Always follow manufacturers instructions when using chemicals . In areas where dirt moisture is maintained , the University of Idaho states that the BioVector nematode acquired immune deficiency syndrome in see to it mickle flea beetle larvae .
Cutworms
The spotty cutworm , United States Army cutworm and redbacked cutworm are three types of cutworm that plan of attack mint flora . Cutworms fare in a variety of semblance from immature to black , yellow and tan ; larvae are often brown or green . The partly spring up larvae of regular army and spotted cutworms overwinters in the soil and begin feed on freshly grown mint in the former give . The redbacked cutworm overwinters as an egg and begins feeding on plant subsequently in the spring . Lack of new growth is the first sign that cutworm have attacked mint plant .
According to the University of Iowa , newly plant mint field of battle should be treated with insecticide if there is one cutworm per square metrical foot ; in older mint field habituate insecticides only when there are more than five cutworm per straight infantry . Always follow manufacture instructions when using chemical insecticides .
Two-Spotted Spider Mite
deficient wet is the main intellect two - spotted spider mites attack mint plants . Grown spider mites overwinter in territory and utter , rot plant subject . Two - spotted spider mites set on the leaves of the mint plant and leave tiny silvery spots on the leaves . The mint leaf withers and eventually neglect from the industrial plant . Spider jot multiply quickly and must be master as presently as possible to stop further damage to mint works .
Controlling two - spotted spider touch is unmanageable . agree to the University of Idaho , the lacewing , thripid and black peeress mallet are natural predators of the spider mite that make their home in mint field , but there unremarkably are n’t enough natural predators to keep up with the rapid reproduction of spider tinge . spray great deal with insecticidal soaps helps control the spider soupcon . Always keep up the manufacturer instructions when using insecticidal max .
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