Thuja green giants are a needle , evergreen tree diagram that are democratic mostly because they are both disease- and drouth - resistant . However , just because your green giant does not get sick often does not intend that it is invincible . There are a few thuja green giant disease that can topple these fast - get evergreens in a few year or less . Getting intimate with warning signboard and symptom can serve you forbid the going of your tree .

Bagworms

genus Thuja immature giants now and then will pick up bagworm infections . Generally you will not spot this infestation until the bagworms have started making their namesake " bags " on the branches using bit of barque and leaves along with plenty of silk from the worm itself . Bagworms can defoliate your tree , so if you observe that some of the leave are brown or the branch are bare , check them for signs of an infestation . Bagworms can be controlled by removal , if the level of the transmission is not too spartan , with a bacterial spray that check bacteria that will shoot down the bagworms or with a chemical treatment – orthene and diazinon are both alternative . verify that you coat the thuja thoroughly if you decide to spray or you will not decimate the disease .

Scale Infestations

Thujas may also develop problem with plate bugs as they senesce . ordered series bug can be " punishing " or " easygoing , " and since thuja fleeceable giants are evergreens , they are susceptible to both . Scale insects are about the size of it of a grain of pepper , so they can be pretty difficult to spot until they burrow into the needles or branches of the tree , at which point they lift intemperately , rust fungus - discolour blister in the instance of hard scale of measurement and start to seep a sweetened , sticky message that promotes cast and mold in the font of soft scurf . Both forms of scale can be combat with horticultural oil , which asphyxiate the organisms .

Rots and Blights

Like most trees , a light-green gargantuan thuja can succumb to rot or plague in its rootage . Generally rootle bunkum and origin blight are a symptom of over - watering , which is easily remedied in the case of the drought - resistant genus Thuja . If you comment that the tree seems to be " hungry " with wilted , brown leaves even though it is have plenty of weewee , then the roots likely are not operate correctly . you could endeavor to correct source rot and blights by making sure that the soil is well - drain and only watering your thuja when soil is completely dry . Also , be sure to water early in the morning . However , if your efforts do not start the tree to overcome the rot in its root system , you will need to take away the plant from the arena to avoid infecting surround flora .

References

…