Young shoots and leaves of fruit trees are very susceptible to disease and often attacked by pests.
A fairly intensive protection program is necessary to obtain healthy and well-developed maiden trees.
Spraying against apple and pear scab and white blotch of pear leaves should be carried out during the development of the first leaves, until mid-July, on average what 14 days or after extended periods of wet weather. The following agents should be used alternately to combat these diseases: Syllit the Dodinox (0,15%), Captain (0,3%), Dithane M 45 (0,3%), as well as newly introduced formulations like Rubigan (0,03%) the Saprol (0,15%).
Preventive spraying against powdery mildew of apple trees 4-6 times should be done from mid-May, on average what 8-10 days. The following measures are recommended for spraying: Nimrod (0,1%), Sulfol (0,7%), Afugan (0,1%), Bayleton (0,07%), Rubigan (0,03%) the Saprol (0,15).
Fine leaf spotting of stone fruit trees, which occurs on sour cherry and cherry trees should be combated by spraying with Syllite or Dodinox, in concentration 0,1%, starting from mid-May. The treatment uses a sieve, co 10 days, 4-6 times. When there is a lot of rainfall, the number of treatments should be increased dd 6-8 times.
Trees with symptoms of diseases: silvery, bark necrotic blotch and gumming should be removed from the nursery as soon as symptoms are noticed. In order to protect the trees against gangrene, the bark must be treated after the treatments that damage the bark, hailstorm, as well as after manual washing of the leaves, spray with Topsin M in a concentration 0,1%.
Aphids, Cotton-leaved buffalo and caterpillars eating leaves should be fought at the first symptoms of their occurrence and feeding. To combat aphids, alternately use one of the following agents: Metasystox (i) forte (0,05%), Tinox 25 (0,1%), Bi 58 EC (0,1%), Fekama dichlorfos (Nogos 50 EC) (0,1%). The first spraying is usually done in the third decade of May, and then as needed. Leaf-eating caterpillars should be controlled by one of the following measures: Liquid insectophos 50 (0,15%), Liquid phosphorus 50 the 20 (0,2% the 0,5%), Liquid sadophos 30 (0,4%), Liquid metox 30 (0,1%) the Zolone (0,15%).