Floral common pest prevention methods

AUTHOR： DATE：2016/6/24 16:14:47 VISITS：

1, slug

  The main yellow slug, brown edge green slug, slug Korea brown, mulberry brown slug, flat slug larvae feed on a large number of blades in the hot season. Control methods: once discovered, should be immediately 90% of the crystal trichlorfon 800 times Pensha, or 2.5% fenvalerate EC 1500 spray.

2, scale insects

  Mainly white round Kuwana, C.japonicus, red wax scale, soft brown wax scale, Icerya, bran tablets shield Kuwana, Kuwana Snake Eyes, with its hazard characteristics is sucking rose stems, leaves juice, resulting in poor plant growth, mainly high temperature and humidity, poor ventilation, poor light induced. Control methods: to its nymphs hatching, with 25% buprofezin WP 2000 times Pensha.

3, aphids

  Mainly rose aphid, green peach aphid, etc., they suck plant assassination juice young organs, damage stems, leaves, buds, etc., seriously affect plant growth and flowering. Control methods: in a timely manner with 10% imidacloprid wettable powder can be 2000 times Pensha.

4, rose three sawfly

  More in the larval stage, dozens or hundreds of bars cluster hazards, a short time you can eat plant leaves, leaving only a few main vein, serious harm to normal fertility plant. Control methods: a small amount of pot, can at first appeared, picking blade aggregation of a large number of larvae, which was trampled to death. Appeared in large numbers, can be 75% phoxim 4000 times Pensha.

5, carmine spider mite

  A year can occur 10 to 16 generations to a mite, larva, nymphs cluster hazards in the dorsal assassination suck eggs prolific in the dorsal vein of fine wire mesh sides or aggregated under. Each female mite can lay 50 to 150, reaches up to 500, to complete a generation under conditions of temperature 23 ~ 25 ℃, just 10-13 days, at 28 ℃, about seven days to 8 days. Hot dry season occurs rampant, often resulting in a large number of front blades dense white spots, dorsal yellowing even with dry spots. Control methods: Once, in a timely manner with 25% WP 2000 times Le Pa Pensha.

6, beetle

  The main Pseudomonas beetle, black velvet chafer, white star flower beetle, chafers and other small blue and white, often with adult chewing leaves, young shoots and buds, seriously affect plant growth and flowering. Control methods: the use of adult suspended animation in the evening shaking off hunting. The use of adult phototaxis, with black light trap. When adult feeding damage, with 50% malathion EC 1000 times Pensha.