標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁] 作者: 6t6t 時間: 2019-4-13 05:03 PM 標題: Early Blight and Septoria Leaf Spot on Tomato Plants
Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but : }" `# `$ e/ l7 c1 j: j. l0 E
' p2 }# F" q% U/ {6 n2 N5.39.217.77:8898can start at any time. Infections can occur anywhere and are most severe in wet and humid areas. 6 ]2 ?# A/ {& r: Utvb now,tvbnow,bttvb 9 A' c4 S: G- X( t; P2 C9 i. N# l# q. e3 Y1 M5 |: C
How to identify Early Blight5.39.217.77:8898/ K1 `( g8 x6 O
5 B& W; V" R* { ~8 l5 _% ]2 f' JTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 公仔箱論壇6 |: d$ @1 @( n( d: `" x
5 m7 a' u8 @6 w) | W. i. W& PTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown tvb now,tvbnow,bttvb( G- D8 K3 v6 ]6 w$ \5 s3 A) s; g
# N" m. a+ S. J( g
in color and form concentric rings, or a + p& A& ^% @& r4 v( ] s) V5.39.217.77:8898 7 @3 {2 k/ W' g. Sbullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 6 m! `2 p- Z1 J0 S) ~2 s7 l' D, @6 K 5 `# P7 [! Y* L: L" `2 ?TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。leaves may fall off. Extensive loss ! z: v; O" d7 H4 e& S
tvb now,tvbnow,bttvb6 b! r3 a- ?/ ~& @- B; B
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.公仔箱論壇$ @6 o: g b" I' [
5 t( ] l$ U+ ?! ~" }. x4 W5.39.217.77:8898Symptoms of Septoria leaf spot also start & i1 e, z9 I) M/ j& g
公仔箱論壇: P4 Z; Y- }5 B, ^9 w) N* p
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change " O/ s2 G8 p7 |) O4 e" N0 P* Y% VTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 * R2 U- p4 N3 L& P+ ^. E, LTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。" I! ]. Y: w8 |5 O
tvb now,tvbnow,bttvb6 l, k' y. v9 B! Y
Small dark spots, the fruiting bodies of the fungusTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。' C$ P0 N\" P1 F1 h/ }1 d) f
5.39.217.77:88983 g- K+ \- `7 @& t! E/ Z , will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry . g& _: v N% u5 C' N Q. J& dtvb now,tvbnow,bttvb n! d% q; c& m9 m
and dead. Stems can also become infected but 8 z: _$ N, ]8 D/ s5 K. L5 E. R ^tvb now,tvbnow,bttvb / x! w6 o1 y8 n- i1 i/ A$ atvb now,tvbnow,bttvbinfection of fruit is rare.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。0 b# E) {7 [, N7 ?" `
# ^4 p& ~& u5 M$ y6 O w公仔箱論壇5.39.217.77:88983 F& k# c$ [2 Z+ h% _- P
How to Prevent and Control Early Blight and $ a) K ^3 t$ R1 k8 @! X
) H% `5 l A/ G) L7 B2 q/ Q8 vTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Weed your garden. Some weeds, % V3 N, A3 q# [' Y1 Z0 j : Q* L2 ^/ S; C+ d' ~; Wlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants. 6 S) t- s: ~1 d; \/ c: G# N2 L! P0 M) r( f1 G, D5 n1 T- H Rotate crop locations. Don’t 5.39.217.77:8898- G& i3 ]! m) t/ {. c. j
) c+ F7 a! b& |% y" U2 rplant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 0 a9 D" H) E' {0 T$ b: k
/ z- d7 N3 E4 g( u( k+ O9 YTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。where tomatoes were grown. 7 |$ Q6 p+ J5 S7 ]" C3 Ktvb now,tvbnow,bttvb% d4 U5 ^+ ]3 O" t0 }
Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。9 I( J' H4 ?6 r$ ` b- p9 e+ H8 a
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb2 N2 Y2 }+ n: Q, u' s+ \
: u* L V Y$ U) y& P! R' S
fungus from the soil to your 5 @- ]% y2 u6 _, g bTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。2 D8 m2 c* T) ?2 V/ B$ ^
plants. , x( g$ Q; f; y/ p$ j8 m$ ftvb now,tvbnow,bttvb# [$ l) a6 C u" h) B, R- z2 Z0 B
Stake or cage plants to keep them # E" G- Y! F' A$ C1 v3 x 6 c5 F9 m: t' O3 C1 h公仔箱論壇off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and 6 p0 q. C: S9 r5 q5.39.217.77:88987 ^% `' }% O* Q( b+ n, b' E. X
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of tvb now,tvbnow,bttvb5 ?! v/ p% _& v6 N
2 X& k) @9 o) N
space above the soil without any leaves. Do not use 0 M% }$ J' u3 ^ $ T- h, m8 D% ~\" E9 g/ ioverhead watering. 公仔箱論壇: z& Y3 X# j! X0 G) e) E' O+ a
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. 5.39.217.77:8898: {8 F8 \5 k) Q
Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 2 w4 s. F m- N+ E5.39.217.77:8898) T; }) ]4 P# [" M
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are " m: W3 z* f9 F q$ K. g9 R5.39.217.77:8898 # J* }, u# E8 B0 Kwet. Keep your plants happy and healthy. Weak and stressed % h% o; d' E$ p' S% X' I5.39.217.77:8898 7 d, a4 W/ Z/ z9 U( b3 W3 v0 b公仔箱論壇plants are more susceptible to disease.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。1 M7 [0 U' y* V( Q0 N
, y$ w1 t' Q" m( f) ?Remove and destroy or throw away diseased leaves, both off the 2 O T2 u4 A2 H7 H9 M. ?- v: D4 ?5.39.217.77:8898 9 e# H, T' M( Y0 m- U5.39.217.77:8898plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early 9 ~, O8 [* \" n) m$ i5.39.217.77:8898 ( G. s) M$ u! F' x, s2 ]& Benough. If a plant is heavily infected + V( X( S% d: l5 W9 y& t) q! i3 }8 Z 0 d# ]# K. A; l公仔箱論壇, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used & U" }& K! G* q) s) VTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。公仔箱論壇# T" b! p. r" V5 O& L
to remove diseased leaves should be disinfected before being used on a different plant." J* A2 f% I- F. g2 Q
5.39.217.77:8898: B" ?8 ], d1 G% q
Spray plants to prevent and control the , T$ \: v9 `8 i% ], } i: L; g8 W4 J) x; G\" D1 X
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try 2 t4 S C+ f# @! DTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 _' }, f% i- N3 T3 f9 f, d8 X& f+ [5.39.217.77:8898GreenCure. ' M8 U7 }, F' j/ u9 h otvb now,tvbnow,bttvb ! `7 C4 L1 E7 F- F _tvb now,tvbnow,bttvbtvb now,tvbnow,bttvb2 z+ ^) z, O- o9 E1 A- B6 N8 q) V. g
Late Blight on Tomato PlantsTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。: @/ N2 m, B2 v9 _7 h( a( [+ P
5 ^; k& h' P" C9 A0 Y% H+ h/ j* D公仔箱論壇Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato 4 t# G; K1 D6 [5 `. u8 k 5 R8 q2 a' L- V; l2 kTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。plants in a garden. Once a tomato plant 5.39.217.77:88982 h3 `! S% M' z0 W' ^5 l1 e1 j
- t( Y8 w- c9 t. k5 _: e" Q公仔箱論壇is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, 4 d% F$ N/ S; u1 A$ K
公仔箱論壇# ?8 D5 c: _0 Z5 T6 n
water-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blight & u9 k% Z0 [+ t; M- Z- c, q6 r. W 3 w# l\" d6 U% i, g/ R5.39.217.77:8898 can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。0 F: D w- P% ^
]7 l/ }2 q& R+ o- \- ?# O公仔箱論壇Septoria leaf spot infections will also help prevent late blight infections.
