Insecticide For Maize

Crop losses to maize stem borers are severe throughout east and southern Africa, with maize being grown on over 80 percent of the agricultural land. The use of insecticides may be cost-effective in some cases depending upon levels of infestation and associated damage. However, insecticide resistance is a persistent problem, especially among stem borers and other pests such as the black cutworm, fall armyworm and aphids. Therefore management strategies should always include recommended cultural practices, integrated pest management and biological control. Twenty insecticides have been approved for use against stem borers; however only three – carbofuran, chlorpyrifos/diazinon and endosulfan – are active against all stages of maize stem borers. Control can be improved greatly by combining tactics such as plant spacing, plant type or cultivars with various types of physical barriers such as row covers around plantings or a controlled water supply where necessary. Insecticide choice depends on mode of action, cost per hectare and whether resistance has developed locally.

Insecticide For Maize

The stem borer (Chilo partellus Swinhoe) is one of the most destructive pests of maize crop. Research experimentations were carried out on maize to control stem borer using conventional pesticides under field condition during summer season of two consecutive years from 2015 to 2016 at Rampur, Chitwan. All used pesticides had significant effect (P≤0.05) on percent damage and crop yield over control. In 2015, the lower percent damage (5.3%) with higher crop yield (4.52 t ha^-1) and lowest insect score (1.00) was observed in plot sprayed with spinosad 45% EC at 0.5 ml L^-1 of water followed by plot treated with chloropyriphos 50% EC+cypermethrin 5% EC @1.5ml L^-1 of water with percent damage of 6.60%, crop yield (4.23 t ha^-1) and insect score of 1.60. Almost similar trend of insect incidence along with damage percentage and yield data were observed in 2016. The higher percent damage control (79.06%) was observed at the plot sprayed after spinosad 45% EC at 0.5 ml L^-1 of water with higher crop yield (4.58 t ha^-1) and lowest insect score (1.00) followed by the plot treated with imidacloprid 17.8% @ 0.5 ml L^-1 of water with percent damage control of 73.10 %, crop yield (3.38 t/ha) and insect sore 1.50. The highest percent damage (20.63%) was observed in the control plot with lower yield (0.95 t ha^-1) and highest insect score (6.00). Over the years, spinosad 45% EC at 0.5 ml L^-1 of water was effective bio-pesticide to control maize stem borer damage and also increase the yield.

Insecticide For Maize

The maize stem borer, also known as the maize shoot borer, is a major pest of maize crops. This insect can cause serious damage to corn plants and significantly reduce crop yields. The most effective way to control this pest is through the use of insecticides.

Insecticides are often classified based on their active ingredient. For example, pyrethroids are a type of insecticide that has been shown to be effective at controlling the maize stem borer. Pyrethroid insecticides differ from other types of insecticides in that they are light-sensitive meaning that they break down in sunlight, which allows them to be used in greenhouses or fields where there may be significant sunlight exposure. These products are also low toxicity to mammals and birds so they can be used safely around people and animals alike.

Pyrethroid products should be applied before adult moths emerge from the soil and begin laying their eggs on shoots where they will hatch into larvae which will then bore into growing kernels (seed kernels) causing damage which may lead to reduced yield or even total destruction of crops depending on severity of infestation (number/size).

List Of Insecticide For Maize