Prevention of this pest is to apply a good tillage . Tillage will reduce the caterpillar population next cob . The main enemy of this pest is Trichogramma spp . which is a parasite eggs and larvae of parasites argentiopilosa Eriborus young .
Wisata Pulau Pari Fleas leaves ( R. maidis ) , it issued a pest of honey dew on the leaves which turn into black soot . The stains will hamper the leaves carry out photosynthesis . Natural enemies of these pests is Lysiphlebus mirzai , Coccinella sp . and Micraspis sp . Technical culture that can be done to avoid these pests by crop polyculture menumpangsarikan sweet corn or other crops .
Grasshopper ( Oxya spp . ) , These pests are more abundant in lowland grassland or paddies . Several natural enemies of grasshoppers is Systoechus sp . , Birds and spiders . Additionally Metarhizium anisopliae pathogens such an enemy locust . Metarhizium anisopliae is a biopesticide substance that is capable of controlling locusts 70-90 % .
Rat ( Rattus argentiventer ) , this pest usually attacks sweet corn plants grown in paddy fields . Rats eat the young cob being cooked milk , usually rats eating tuna from the tip to the middle of the base . Organic pest control mice is to hunt down and eradicate rats from the nest .
Besides pests , cultivation of sweet corn can not be separated from disease caused by bacteria , viruses or fungi . Here are some diseases that often attack crops , especially sweet corn grown in the tropics :
( Peronosclespora maydis ) , Caucasians symptoms are leaf surfaces with
white stripes to yellow followed by a brown color . Then attack damage cob . This
disease can strike throughout the growing season , but the largest
cases attacking cultivation of sweet corn planted outside the season or
late planting . This disease attacks causing great damage , can cause loss to 100 % . Caucasians disease can be avoided by the selection of seed
varieties that are resistant P. maydis , destroy infected plants ,
planting with the seasons , and crop rotation .
Pulau Tidung Rust ( Puccinia sorghi ) , symptoms are patches of brown to orange blotches on the upper leaf surface . This disease usually attacks the corn grown in the tropics to temperate. The disease is growing well at a temperature of 16 - 23oC with high humidity . Can be controlled by the selection of seed varieties , maintaining
field sanitation and application of biopesticides if ulcers appear on
the leaf surface .