Gadenin日本語Get the app
Capsicum annuum
Growing calendar
Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.
Guides
- Planting Green Peppers: Soil Temperature, Spacing and Staking
- Pruning Green Peppers: The First Fork, Topping and Late Thinning
- Green Pepper Care: Keeping a Frying Pepper Cropping All Season
- Green Pepper Growing Calendar: Sowing to the Last Pick
- Green Pepper Problems: Aphids, Flower Drop, Rot and Hot Pods
- When to Pick Green Peppers: Size, Frequency and Why They Turn Red
Common problems
Start from what you can see on the plant.
Pests and diseases (57)
Problems recorded for this plant, most serious first.
Thrips
MajorPest
Silvery white to brown scarring spreads over leaf and fruit surfaces. Flowers discolor and drop, and fruit is left with keloid-like scar tissue.
Tomato Spotted Wilt
MajorDisease
Brown necrotic spots and ring patterns appear on the leaves and the growing tips shrivel and darken. Fruit develops concentric yellow rings that make it unmarketable.
Helicoverpa Bollworms
MajorPest
Round holes are bored into fruit and buds, the inside eaten out and packed with frass. Rot spreads from the entry hole, leading to fruit and bud drop.
Tobacco Mosaic Virus
MajorDisease
New leaves show a clear light-and-dark green mosaic, become wavy and stay small. Growth stalls and fruit fails to size up properly.
Pepper Mild Mottle Virus
MajorDisease
Leaves become faintly variegated and mottled and crinkle slightly. Fruit stays small, is bumpy and unevenly colored, and fewer fruits set.
Bacterial Spot
MajorDisease
Small water-soaked spots appear on the leaves, later turning brown with yellowing around them. Fruit develops water-soaked or scabby spots from which rot spreads.
Sunscald
MajorDisorder
The sun-facing side of the fruit bleaches white to pale yellow, then dries into a sunken leathery patch. Rot organisms enter easily through the damaged tissue.
Bacterial Wilt
CommonDisease
Leaves wilt while still green during the day and recover in the morning and evening; after a few days of this the plant dies. Cut the stem and stand it in water and a milky white bacterial ooze streams out in threads.
Late Blight
CommonDisease
Dark green water-soaked lesions appear on the leaves and expand quickly into brown dead tissue. White mold forms on the underside and at the lesion edge, and dark brown lesions spread to stems and fruit.
Cucumber Mosaic Virus
CommonDisease
New leaves show a yellow-green mosaic, crinkle, and the whole plant becomes stunted. Fruit colors unevenly and grows misshapen.
Blossom End Rot
CommonDisorder
The blossom end of the fruit turns water-soaked, then dark brown, and sinks in. It is most common on fruit in the sizing stage, and secondary rot often follows.
Potato Virus Y
CommonDisease
Mosaic, crinkling and vein necrosis appear on the leaves and the lower leaves die back. The plant is stunted and yield falls; some strains leave necrotic rings on the tuber surface.
Asian Corn Borer
OccasionalPest
Entry holes and powdery frass appear on the tassel and stalk, and the stalk may snap. Larvae bore down from the tip of the ear and the kernels are eaten and rot.
Stone Fruit Disorder of Eggplant
OccasionalDisorder
Fruit is hard, loses its gloss and stops at a small size without sizing up. Cut it open and almost no seed has formed.
Puffy Fruit
OccasionalDisorder
The fruit looks normal outside but is hollow inside when cut, feeling light and angular in the hand. Flavor is thin and shelf life is poor.
Tomato Mosaic Virus
OccasionalDisease
Light and dark mosaic appears on the leaves, which narrow, twist and crinkle. Fruit ripens unevenly and browns internally, cutting both yield and quality.
Twenty-eight-spotted Ladybird
OccasionalPest
The leaf surface is shaved thin, leaving a fine net-like pattern of feeding scars. Heavy feeding browns and kills the leaves and scars the fruit surface as well.
Fusarium Wilt
Disease
Lower leaves wilt during the day and recover morning and evening, and this cycle repeats as the plant dies back. Cutting the stem reveals characteristic browning of the vascular tissue.
Powdery Mildew
Disease
White patches appear scattered on the upper leaf surface at first, then the whole leaf is coated in a white powder. Leaves later yellow, brown and die back, and reduced photosynthesis cuts growth and yield.
Bacterial Canker
Disease
Leaf margins scorch and die back, and splitting the stem reveals browned vascular tissue. Scabby, bird's-eye lesions form on fruit and shoots.
Sclerotinia Rot
Disease
The crown, stem or head rots in a water-soaked way and is covered in white cottony mycelium. Black sclerotia later form inside and on the surface, and the plant wilts and dies.
Southern Blight
Disease
The stem rots at soil level and white silky mycelium spreads over the crown and the surrounding soil surface. Brown sclerotia the size of rapeseed then form and the plant wilts and dies rapidly.
Anthracnose
Disease
Light brown to dark brown round lesions with sharp margins form on leaves and fruit, slightly sunken in the center. In wet weather salmon-pink slimy spore masses ooze out on the lesions.
Damping-off
Disease
The stem pinches in at soil level, turning water-soaked to brown and thin, and the seedling topples over. Infection before emergence makes the stand uneven with missing plants.
Bacterial Soft Rot
Disease
The crown or the head becomes water-soaked and soft, then collapses into a slimy mush. The rotting tissue gives off a distinctive foul odor.
Root Rot
Disease
Fine roots rot brown to blackish brown, growth stops and the lower leaves yellow. The plant wilts easily in the daytime and eventually dies outright.
Root-knot Nematode
Pest
The plant wilts in the daytime and does not recover with feeding or watering. Pull it up and the roots carry beaded chains of galls of varying size with few fine roots.
Gray Mold
Disease
Water-soaked brown lesions form on flowers, fruit and leaves, densely covered by a fuzzy gray mold. Fruit rots and drops, and decay continues in storage after harvest.
Verticillium Wilt
Disease
Only one side of the lower leaves yellows and wilts, and the symptom moves up the plant. Stem vascular tissue turns pale brown and the plant dies without ever growing well.
Leaf Spot
Disease
Small round brown to gray-white lesions appear on the lower leaves, the centers turning gray with tiny black specks. As they multiply the leaf yellows and drops early.
Ring Rot
Disease
The bark of branches and trunk becomes rough and warty, serving as the inoculum source. Fruit develops round brown lesions that soften and rot in concentric rings.
