Serviceberries ( Amelanchier spp . ) are deciduous shrub or small tree that bring on diminished eatable berries and bloom in clusters of white or pink blossoms during bound . The Juneberry also is known for its violet novel farewell in spring that turn dark fleeceable in summer and yellow , orange or reddish in autumn . juneberry are susceptible to a few fungal disease .
Entomosporium Leaf Spot
The fungus Entomosporium foliage office do tiny reddish spots often fence with yellow halos on the leaves of serviceberry . The leafage spots grow larger and darken , followed by dark spore body form in the centers of the place . The leaf may drop prematurely . Treatment of Entomosporium folio spot begins with removing and toss away all of the morbid leave from the serviceberry , as well as rake up and discarding any fallen leaves . trim to thin out lower branches to increase air circulation around the serviceberry , and avoid spray the foliation with water . If the infection becomes stern , utilise a atomic number 29 - establish fungicide or chlorothalonil to the serviceberry according to the label ’s instructions .
Rusts
Rusts are also fungal diseases that cause wry reddish , yellowish or orange tree - colored pustule spore quite a little on the serviceberry ’s leave , especially on the undersides . The upper foliage airfoil tend to twist yellow to brown , and in some cases leaves may become garble and discolored . rancor or swellings also can appear with cankers on the bark , twigs and branches . Cure rust by raking away and discarding all fallen infected leaves and pruning off infected shoots and branches from the serviceberry . Do n’t perform any overhead lacrimation or get the foliage of the tree wet . Apply an appropriate fungicide in saltation , allot to the directions on the label . The serviceberry is most susceptible to cedar serviceberry rust fungus or " witches - heather " disease .
Powdery Mildew
Powdery mildew can sham most type of fruit or berry tree and shrubs , causing a white to grayish , powdery spore - like program on both sides of the leaves , as well as sometimes the shoots , blossom or fruits . Powdery mildew most commonly appears during strong , moist term , and its spores can over - wintertime on serviceberries . Prune aside and discard all diseased growth on the serviceberry to control the spreadhead of the disease . Spray the juneberry with horticultural oils or neem oil to get disembarrass of a severe powdery mildew contagion . Spray the serviceberry when the tree is n’t stressed from drought and temperature are n’t blistering than 90 degree Fahrenheit . Do n’t go for the horticultural or neem oils within two weeks of apply any type of sulfur spray .
