Slugs are a pest, slugs are also known as slugs, although slugs are not poisonous, but have a harmful effect on plants, it is an omnivore, and the damage is more serious in the months of May-July each year, it will bite the flowers, leaves and rhizomes of the plant, resulting in damage to the flowers and leaves, and will also leave a white marks, resulting in deterioration of the ornamental, rhizome is damaged, affecting the transport function, thus making the plant withered.
Slugs also feed on young fruit, causing scars on the surface of the fruit after eating it, which can lead to a summer of commercial fruit, or in severe cases, a reduction in yield. The slugs eat the crop, resulting in wounds on the stems and leaves, which are susceptible to a variety of harmful pathogens that can cause disease.
Slugs occur two generations a year, to adults in the soil overwintering, the next spring, in the shallow soil, under the translucent eggs, 30 a 40 into a piece, the insect day and night, after sunset began to move.
Slug control methods
1, slugs like water and fear of light, often hiding in the dark and damp, humus more places, so the fall should be timely cleanup and deep turning of the field, to kill its overwintering adults and eggs.
2, environmental temperature higher than 20 ℃ will affect the normal physiological activities of slugs, higher than 25 ℃ can quickly lead to its death, so can be taken to cover the plastic film to prevent slugs climbed out of the ground, so that the slugs due to temperature stress and lack of food sources and death.
3, slugs have a certain tendency to sweet, fragrant, fishy odor. Sprinkle young lettuce leaves, cabbage leaves and other smelly food in the evening in and around the seedling field, and you can manually clean up after uncovering the lure in the early morning.
4, soil moisture content below 10%-15%, or higher than 40%, can cause slugs to hinder growth and death.
5, seedbed land and large fields can be sprinkled with lime powder, grass ash, with awned wheat chaff, cereal bark, etc. to kill slugs.