Rabu, 24 September 2014

Symptoms of these pests

Symptoms of these pests at the time the plant was 7-14 with symptoms HST leaves turn yellowish, around the bite or attacked parts decay, eventually withered plants, plants become stunted growth or death.
The characteristics of seed flies are flies a gray color with greenish yellow color striped back, abdomen yellowish brown color, egg color pearl white, long flies from 3 to 3.5 mm.
Control of this pest is the simultaneous planting and applying crop rotation to break the life cycle, especially after corn harvest is complete.
Poker757.net Agen Judi Poker Domino 99 Online dengan Bonus Uproot and destroy affected plants, maintain the cleanliness of the land of weeds, and controlling the use of spray pesticides Dursban 20 EC, Marshal 25 ST with the recommended dose.

2. cutter Caterpillars and fruit borer

Examples cutter caterpillar is Agrotis sp., Spodoptera litura.
Examples caterpillar borer Ostrinia furnacalis is
Examples are fruit borer caterpillar Helicoverpa armigera
Symptoms of attack is characterized by the presence of bite marks on the stem, the presence of young plants that collapsed.
Control of these pests is by planting simultaneously on large areas, seek and kill it manually, and do spray with an insecticide with the recommended dose.

Kamis, 04 September 2014

Leaf blight (Helminthosporium turcicum)

 Leaf blight (Helminthosporium turcicum), this disease attacks the Lowongan Kerja leaves of the early symptoms of patches of small oval which evolved into blight grayish brown. Usually the attacks are found on older leaves (bottom) and then spread to younger leaves (above). In severe circumstances can menyababkan death in plants with the appearance of dry leaves burning. To control it using resistant varieties, good tillage, weeding and planting spacing. In the cultivation of non-organic sweet corn can be applied fungicides.
    
Leaf blight (Curvularia sp.), This fungus causes leaf blight with early symptoms of irregular blotches on leaf tips, central whitish brown spots with dark brown fringe. Spotting extends to the base of the leaf to make the entire leaf dries. The disease is rapidly spreading in conditions of high humidity and rainfall. Control by selecting resistant varieties, improved soil drainage, improving sanitation and eliminate garden plants or parts of plants affected.
    
Sheath blight (Rhizoctonia solani), symptoms of rot on the stem. Originally attack on the part of the plant that is closest to the ground and then spread to other parts. In certain varieties of attack up to a bida cob pieces. Control by regulating the cultivation of sweet corn to drought, plant varieties which have the distance from the ground high enough cobs, leaves merompes contact with the soil, weed the garden, cut the plants attacked and apply crop
Agen Bola rotation.
Harvest sweet corn cultivation
Sweet corn started flowering after 50 days. Ten days before the main harvest, corn harvest should be done.