Against pear psyllid, one application may be sufficient when almost all of the eggs left by the overwintering fertile adults have hatched and second and third period nymphs begin to appear, more than 15% of the shoots begin to be infected, the honeydew has not started to flow and natural enemies are not abundant.
The fight against citrus mealybug in the vineyard is carried out in two periods. The first period is the period when wetness begins to appear on the bark of the vine's trunk and the citrus mealybug begins to advance towards the green part. During this period, the grape vines are approximately the size of a chickpea and only the citrus mealybug is seen. The second period is the period when the citrus mealybug passes to the leaves and bunches and the grains begin to sweeten. If infection is detected in most of the vines and also in exported varieties, application can be made in both periods.
! It is not used in vineyard areas where vine leaves will be harvested for consumption.
Tomato (greenhouse), Eggplant (greenhouse) and Pepper (greenhouse) Tobacco whitefly: The area detected to be infected with whitefly is entered from the diagonal direction. 50 leaves are collected from the lower, middle and upper leaves every five steps. Chemical control is applied when there are 5 larvae + pupae per leaf.
In tomato, against potato aphid, the field is entered from the diagonal direction and one leaf is randomly plucked from the fresh leaves and shoots of the plants every 3-5 steps. If the number of pests per leaf is 10-20 as a result of counting with a loop on 20-40 leaves, the control should be started. In addition, parasitoids and predators should be observed and the effectiveness of the beneficials should be taken into consideration before deciding on the applications.
Application should be made when 15 infested shoots are seen during the vegetation period against apple green aphid.
In watermelon, against cotton aphid, the field is entered from the diagonal direction and one leaf is randomly plucked from the fresh leaves and shoots of the plants every 3-5 steps. As a result of counting 20-40 leaves with a loop, if the number of pests per leaf is 10-20, it is necessary to start the fight. However, parasitoids and predators should be observed and the effectiveness of beneficials should be taken into consideration before deciding on the applications.
In lettuce, application is made when an average of 10-20 pests are seen per leaf in 20-40 leaves that are plucked every 3-5 steps by entering the field in the direction of the diagonal. However, parasitoids and predators should be observed and the effectiveness of beneficials should be taken into consideration before deciding on the applications.
In cotton, if the aphid and beneficial insect population is dense in field controls against cotton aphid, spraying should be postponed. Chemical control should be carried out when an average of 25 aphids are detected on a leaf in field controls.
In peach, application is applied against mulberry scale insects against the first and second generations. It is done in two applications, at the first larvae hatch and 20 days later. However, it should be taken into consideration that some peach varieties have reached the harvest period in the second generation. In peach trees, treatment should be carried out against peach aphid when 7 infected branches are encountered in 50 trees, from the emergence of flower buds until 3/4 of the population turns into winged form.
